Atomizer, and electronic atomization device thereof

ABSTRACT

A vaporizer includes: a liquid storage tank for storing liquid; a mounting base including a vent channel for transmitting air to the liquid storage tank and a leaked liquid buffer structure having a capillary force, the leaked liquid buffer structure being in communication with the vent channel; and a vaporization core including a porous substrate and a heating element, the porous substrate being in fluid communication with the liquid storage tank and absorbing liquid from the liquid storage tank through a capillary force, the heating element heating and vaporizing the liquid of the porous substrate. The vaporization core is located between the liquid storage tank and the leaked liquid buffer structure. The leaked liquid buffer structure abuts the porous substrate and refluxes liquid leaked from the vent channel to the porous substrate.

CROSS-REFERENCE TO PRIOR APPLICATION

This application is a continuation of International Patent Application No. PCT/CN2020/128817, filed on Nov. 13, 2020, which claims priority to International Patent Application No. PCT/CN2020/089825, filed on May 12, 2020 and International Patent Application No. PCT/CN2020/114889, filed on Sep. 11, 2020. The entire disclosure of the foregoing applications is hereby incorporated by reference herein.

FIELD

This application relates to the field of vaporization device technologies, and in particular, to a vaporizer and an electronic vaporization device thereof.

BACKGROUND

A vaporizer is a device that vaporizes vaporizable liquid such as e-liquid, and is widely applied to fields such as electronic vaporization devices and medical care. During transportation, inhalation, or placement, condensed liquid left in an air outlet channel in an electronic vaporization device may easily leak to the outside of the electronic vaporization device. When an air pressure in a liquid storage tank in the electronic vaporization device is greater than an external air pressure, e-liquid in the liquid storage tank may leak out from a vent channel and further leak to the outside of the electronic vaporization device, affecting the entire experience of the vaporizer.

SUMMARY

In an embodiment, the present invention provides a vaporizer, comprising: a liquid storage tank configured to store liquid; a mounting base comprising a vent channel configured to transmit air to the liquid storage tank and a leaked liquid buffer structure having a capillary force, the leaked liquid buffer structure being in communication with the vent channel; and a vaporization core comprising a porous substrate and a heating element, the porous substrate being in fluid communication with the liquid storage tank and configured to absorb liquid from the liquid storage tank through a capillary force, the heating element being configured to heat and vaporize the liquid of the porous substrate, wherein the vaporization core is located between the liquid storage tank and the leaked liquid buffer structure, and wherein the leaked liquid buffer structure abuts the porous substrate and is configured to reflux liquid leaked from the vent channel to the porous substrate.

BRIEF DESCRIPTION OF THE DRAWINGS

Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:

FIG. 1 is a schematic structural diagram of an embodiment of an electronic vaporization device according to this application;

FIG. 2 is a cross-sectional view of an embodiment of a vaporizer in an electronic vaporization device according to this application;

FIG. 3 is an enlarged schematic structural diagram of a position A in FIG. 2 ;

FIG. 4 is a schematic structural diagram of a first embodiment of a mounting base in an electronic vaporization device according to this application;

FIG. 5 is a schematic structural diagram of a second embodiment of a mounting base in an electronic vaporization device according to this application;

FIG. 6 is a schematic structural diagram of a third embodiment of a mounting base in an electronic vaporization device according to this application;

FIG. 7 is a schematic structural diagram of a fourth embodiment of a mounting base in an electronic vaporization device according to this application;

FIG. 8 is a schematic structural diagram of a first embodiment of an upper base body in an electronic vaporization device according to this application;

FIG. 9 is a schematic structural diagram of a second embodiment of an upper base body in an electronic vaporization device according to this application;

FIG. 10 is a schematic structural diagram of a first embodiment of a lower base body in an electronic vaporization device according to this application;

FIG. 11 is a schematic structural diagram of a first seal member in an electronic vaporization device according to this application;

FIG. 12 is a schematic structural diagram of an embodiment of a seal member in an electronic vaporization device according to this application;

FIG. 13 is a schematic structural diagram of a first embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 14 is a schematic structural diagram of a second embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 15 is a schematic structural diagram of a third embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 16 is a schematic structural diagram of a fourth embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 17 is a schematic structural diagram of a fifth embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 18 is a schematic structural diagram of a sixth embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 19 is a schematic structural diagram of a seventh embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 20 is a schematic structural diagram of an eighth embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 21 is a schematic structural diagram of a ninth embodiment of a vent channel in an electronic vaporization device according to this application;

FIG. 22 is a schematic structural diagram of a first embodiment of a leaked liquid buffer structure according to this application;

FIG. 23 is a schematic structural diagram of a second embodiment of a leaked liquid buffer structure according to this application;

FIG. 24 is a schematic structural diagram of a third embodiment of a leaked liquid buffer structure according to this application;

FIG. 25 is a schematic structural diagram of a fourth embodiment of a leaked liquid buffer structure according to this application;

FIG. 26 is a top view of the leaked liquid buffer structure provided in FIG. 25 ;

FIG. 27 is a schematic structural diagram of a fifth embodiment of a leaked liquid buffer structure according to this application;

FIG. 28 is a schematic phenomenon diagram of a vaporizer in a heating process according to this application;

FIG. 29 is a schematic phenomenon diagram of a vaporizer in a cooling process according to this application;

FIG. 30 is a schematic structural diagram of a sixth embodiment of a leaked liquid buffer structure according to this application;

FIG. 31 is a schematic structural diagram of a second embodiment of a lower base body in an electronic vaporization device according to this application;

FIG. 32 is a schematic structural diagram of a third embodiment of a lower base body in an electronic vaporization device according to this application;

FIG. 33 is a schematic structural diagram of an embodiment of an end cap in an electronic vaporization device according to this application;

FIG. 34 is a schematic structural diagram of another embodiment of an end cap in an electronic vaporization device according to this application; and

FIG. 35 is a schematic diagram of an assembly structure of an end cap with a vaporizer and a power supply component in an electronic vaporization device according to this application.

DETAILED DESCRIPTION

In an embodiment, the present invention provides a vaporizer and an electronic vaporization device thereof, to resolve the problem of how to effectively utilize leaked liquid in a vent channel in the related art.

In an embodiment, the present invention provides a vaporizer, including: a liquid storage tank, configured to store liquid; a mounting base, including a vent channel transmitting air to the liquid storage tank and a leaked liquid buffer structure having a capillary force, where the leaked liquid buffer structure is in communication with the vent channel; and a vaporization core, including a porous substrate and a heating element, where the porous substrate is in fluid communication with the liquid storage tank and absorbs liquid from the liquid storage tank through a capillary force; the heating element heats and vaporizes the liquid of the porous substrate; the vaporization core is located between the liquid storage tank and the leaked liquid buffer structure; and the leaked liquid buffer structure abuts against the porous substrate and is configured to reflux liquid leaked from the vent channel to the porous substrate.

When an air pressure in the liquid storage tank increases, the liquid is pressed to overflow to the vent channel, and the leaked liquid buffer structure receives and locks the liquid leaked from the vent channel; and when the air pressure in the liquid storage tank decreases, the liquid refluxes to the liquid storage tank through the porous substrate.

The mounting base includes an upper base body and a lower base body, the lower base body and the upper base body are fixedly connected to form a vaporization cavity, the vaporization core is accommodated in the vaporization cavity, the vent channel is provided on the upper base body, the leaked liquid buffer structure is provided on the lower base body, and the vent channel is connected to a bottom of the vaporization cavity through the leaked liquid buffer structure and absorbs liquid deposited at the bottom of the vaporization cavity through a capillary force.

The vent channel is in communication with the vaporization cavity.

The vent channel includes a capillary vent groove provided on an outer wall of the upper base body, one end of the capillary vent groove is connected to the liquid storage tank, one end of the capillary vent groove away from the liquid storage tank is an air inlet, the air inlet is provided on an end portion of the upper base body close to the lower base body, and the air inlet is in communication with the vaporization cavity. A vent communication groove is provided on the lower base body, and the vent communication groove is configured to communicate the vent channel with the vaporization cavity.

A first seal member is provided on one end of the upper base body away from the lower base body, a one-way valve matching an end opening of the vent channel is provided on the first seal member, and the one-way valve is configured to block the liquid in the liquid storage tank from leaking to the vent channel; and when the air pressure in the liquid storage tank decreases, air in the vent channel pushes the one-way valve to enter the liquid storage tank, and the liquid in the vent channel refluxes to the liquid storage tank through the vent channel.

The upper base body includes a housing and a separating plate provided on the housing, the separating plate includes an air guide hole structure, the air guide hole structure is in communication with the liquid storage tank, a seal member is provided between one side of the separating plate away from the liquid storage tank and the vaporization core, the vent channel is provided between the upper base body and the seal member, the vent channel communicates the liquid storage tank with the vaporization cavity, one end of the vent channel is in communication with the air guide hole structure, and another end of the vent channel is in communication with the vaporization cavity to transmit air to the liquid storage tank, to balance the air pressure in the liquid storage tank.

An air guide groove structure is provided on an inner wall of one side of the housing close to the seal member, and the seal member covers the air guide groove structure to form the vent channel. An air guide groove structure is provided on the seal member, and the housing covers the air guide groove structure to form the vent channel.

The seal member is configured to prevent liquid leakage of the vent channel.

The leaked liquid buffer structure is provided on the lower base body, the porous substrate includes a liquid absorbing surface and a vaporization surface, the liquid absorbing surface is connected to a liquid flowing hole, the heating element is provided on the vaporization surface, and surfaces other than the liquid absorbing surface and the vaporization surface of the porous substrate are in contact with the leaked liquid buffer structure.

The leaked liquid buffer structure includes a first capillary groove and a second capillary groove, the second capillary groove is provided at the bottom of the vaporization cavity, one end of the first capillary groove is in contact with the porous substrate, and another end of the first capillary groove extends to the bottom of the vaporization cavity to be in communication with the second capillary groove.

The leaked liquid buffer structure includes a capillary hole and a second capillary groove, the second capillary groove is provided at the bottom of the vaporization cavity, one end of the capillary hole is in contact with the porous substrate, and another end of the capillary hole extends to the bottom of the vaporization cavity to be in communication with the second capillary groove.

The leaked liquid buffer structure is a porous material and is configured to support the porous substrate.

The capillary force of the leaked liquid buffer structure is greater than a capillary force of the vent channel, and when the heating element heats and vaporizes the liquid of the porous substrate, the leaked liquid buffer structure may absorb leaked liquid in the vent channel.

The capillary force of the porous substrate is greater than the capillary force of the leaked liquid buffer structure, and when the heating element heats and vaporizes the liquid of the porous substrate, the liquid received by the leaked liquid buffer structure refluxes to the porous substrate and is heated and vaporized.

The porous substrate includes an e-liquid transmission portion and a protruding portion integrally formed on one side of the e-liquid transmission portion, and the leaked liquid buffer structure is provided on an edge of the e-liquid transmission portion and provided at intervals with the protruding portion. The porous substrate is made of any one of a porous ceramic or a porous metal.

The capillary force of the porous substrate is greater than the capillary force of the leaked liquid buffer structure, and when the heating element heats and vaporizes the liquid of the porous substrate, the liquid received by the leaked liquid buffer structure refluxes to the porous substrate and is heated and vaporized.

To resolve the foregoing technical problems, a second technical solution adopted by this application is to provide an electronic vaporization device, including a power supply component and the vaporizer described above.

To resolve the foregoing technical problems, a third technical solution adopted by this application is to provide an electronic vaporization device, including: a liquid storage tank, configured to store liquid; a mounting base, including a vent channel transmitting air to the liquid storage tank and a leaked liquid buffer structure having a capillary force, where the leaked liquid buffer structure is in communication with the vent channel; a vaporization core, including a porous substrate and a heating element, where the porous substrate is in fluid communication with the liquid storage tank and absorbs liquid from the liquid storage tank through a capillary force; and the heating element heats and vaporizes the liquid of the porous substrate; and a power supply component, configured to supply power to the vaporization core, where the vaporization core is located between the liquid storage tank and the leaked liquid buffer structure; and the leaked liquid buffer structure abuts against the porous substrate and is configured to reflux liquid leaked from the vent channel.

When an air pressure in the liquid storage tank increases, the liquid is pressed to overflow to the vent channel, and the leaked liquid buffer structure receives and locks redundant liquid; and when the air pressure in the liquid storage tank decreases, the redundant liquid refluxes to the liquid storage tank through the porous substrate.

The mounting base includes an upper base body and a lower base body, the lower base body and the upper base body are fixedly connected to form a vaporization cavity, the vaporization core is accommodated in the vaporization cavity, the vent channel is provided on the upper base body, the leaked liquid buffer structure is provided on the lower base body, and the vent channel is connected to a bottom of the vaporization cavity and absorbs liquid deposited at the bottom of the vaporization cavity through the capillary force of the leaked liquid buffer structure.

This application has the following beneficial effects: different from the related art, a vaporizer and an electronic vaporization device thereof are provided. The vaporizer includes: a liquid storage tank, configured to store liquid; a mounting base, including a vent channel transmitting air to the liquid storage tank and a leaked liquid buffer structure having a capillary force, where the leaked liquid buffer structure is in communication with the vent channel; and a vaporization core, including a porous substrate and a heating element, where the porous substrate is in fluid communication with the liquid storage tank and absorbs liquid from the liquid storage tank through a capillary force; the heating element heats and vaporizes the liquid of the porous substrate; the vaporization core is located between the liquid storage tank and the leaked liquid buffer structure; and the leaked liquid buffer structure abuts against the porous substrate and is configured to reflux liquid leaked from the vent channel to the porous substrate. In the vaporizer provided in this application, the leaked liquid buffer structure can collect the liquid leaked from the vent channel, thereby preventing leaked liquid from leaking out from the air inlet of the vaporizer. According to the provided leaked liquid buffer structure and the vaporization core, the leaked liquid stored in the leaked liquid buffer structure can reflux to the vaporization core through capillary action, to effectively utilize the leaked liquid, and liquid leakage of the vaporizer can be further prevented by repeating the foregoing process for a plurality of times, thereby improving the user experience.

The technical solutions in embodiments of this application are clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are merely some rather than all of the embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the protection scope of this application.

Referring to FIG. 1 , FIG. 2 , and FIG. 3 , FIG. 1 is a schematic structural diagram of an embodiment of an electronic vaporization device according to this application; FIG. 2 is a cross-sectional view of an embodiment of a vaporizer in an electronic vaporization device according to this application; and FIG. 3 is an enlarged schematic structural diagram of a position A in FIG. 2 . The electronic vaporization device 100 provided in this embodiment includes a vaporizer 10 and a main unit 20. The vaporizer 10 is detachably connected to the main unit 20. The vaporizer 10 specifically includes a liquid storage tank 4, a mounting base 1, and a vaporization core 2. The main unit 20 includes a shell 201 and a power supply component 202. The power supply component 202 is inserted in an end opening of one end of the shell 201, and the vaporizer 10 is inserted in an end opening of another end of the shell 201 and is connected to the power supply component 202 in the shell 201, to supply power to the vaporization core 2 in the vaporizer 10 through the power supply component 202. When the vaporizer 10 needs to be replaced, the vaporizer 10 may be dismounted and a new vaporizer 10 is mounted on the main unit 20, to reuse the main unit 20.

In another optional embodiment, the provided electronic vaporization device 100 includes a liquid storage tank 4, a mounting base 1, a vaporization core 2, and a power supply component 202. The liquid storage tank 4, the mounting base 1, the vaporization core 2, and the power supply component 202 are integrally provided and cannot be detachably connected to each other.

Certainly, the electronic vaporization device 100 further includes other components such as a microphone and a holder in an existing electronic vaporization device 100. Specific structures and functions of the components are similar to those in the related art, and for details, reference may be made to the related art, which are not described herein again.

The vaporizer 10 includes a liquid storage tank 4, a mounting base 1, and a vaporization core 2.

The liquid storage tank 4 is configured to store liquid. The vaporization core 2 is configured to vaporize the liquid in the liquid storage tank 4. An airflow channel 13 penetrating an air inlet end and an air outlet end is provided in the mounting base 1, a part of the airflow channel 13 close to the air inlet end is a vaporization cavity 125, and a part of the airflow channel 13 close to the air outlet end is an air outlet channel 131. Vaporized liquid enters the air outlet channel 131 from the vaporization cavity 125. A condensed liquid collecting structure 14 is provided on the mounting base 1, and the condensed liquid collecting structure 14 is provided in the airflow channel 13 and located between a bottom of the vaporization cavity 125 and the air outlet channel 131. The condensed liquid collecting structure 14 is configured to collect liquid condensed and left in the air outlet channel 131.

The vaporization core 2 includes a porous substrate 21 and a heating element 22, where the porous substrate 21 is in fluid communication with the liquid storage tank 4 and absorbs liquid from the liquid storage tank 4 through a capillary force; and the heating element 22 heats and vaporizes the liquid of the porous substrate 21.

Referring to FIG. 4 to FIG. 7 , FIG. 4 is a schematic structural diagram of a first embodiment of a mounting base in an electronic vaporization device according to this application; FIG. 5 is a schematic structural diagram of a second embodiment of a mounting base in an electronic vaporization device according to this application; FIG. 6 is a schematic structural diagram of a third embodiment of a mounting base in an electronic vaporization device according to this application; and FIG. 7 is a schematic structural diagram of a fourth embodiment of a mounting base in an electronic vaporization device according to this application. Referring to FIG. 4 and FIG. 5 , a leaked liquid buffer structure 122, a condensed liquid collecting structure 14, and a vent channel 15 are provided on the mounting base 1. The leaked liquid buffer structure 122 is in communication with the condensed liquid collecting structure 14, the leaked liquid buffer structure 122 is in communication with the vent channel 15, and the vent channel 15 is in communication with the liquid storage tank 4. Liquid leaked from the vent channel 15 and liquid leaked from the condensed liquid collecting structure 14 may both reflux, through the leaked liquid buffer structure 122, to the porous substrate 21 in contact with the leaked liquid buffer structure.

The mounting base 1 includes a vaporization cavity 125, and the mounting base 1 includes an air inlet end and an air outlet end, where the air inlet end is provided at the bottom of the vaporization cavity 125, and the air outlet end is provided on an end portion of the mounting base 1 away from the air inlet end. The mounting base 1 includes an upper base body 11 and a lower base body 12, and the upper base body 11 and the lower base body 12 are connected through a buckle. An air outlet hole 128 is provided on an end portion of the upper base body 11 away from the lower base body 12, and the air outlet hole 128 serves as the air outlet end of the mounting base 1. An air inlet hole 126 is provided on an end portion of the lower base body 12 away from the upper base body 11, the air inlet hole 126 is provided at the bottom of the vaporization cavity 125, and the air inlet hole 126 serves as the air inlet end of the mounting base 1. A liquid flowing hole 111 is provided on the end portion provided with the air outlet hole 128 of the upper base body 11, and the liquid in the liquid storage tank 4 flows to the vaporization core 2 through the liquid flowing hole 111. There may be two liquid flowing holes 111, and the two liquid flowing holes may be symmetrically provided on two sides of the air outlet hole 128.

The mounting base 1 includes an airflow channel 13 penetrating the air inlet end and the air outlet end. A part of the airflow channel 13 close to the air inlet end is the vaporization cavity 125, and a part of the airflow channel close to the air outlet end is an air outlet channel 131. Liquid vaporized by the vaporization core 2 enters the air outlet channel 131 from the vaporization cavity 125, and then enters a mouth of a user through a mouthpiece. The condensed liquid collecting structure 14 is provided on the mounting base 1, and the condensed liquid collecting structure 14 is provided in the airflow channel 13 and located between the bottom of the vaporization cavity 125 and the air outlet channel 131. The condensed liquid collecting structure 14 is configured to collect liquid condensed and left in the air outlet channel 131. That is, the airflow channel 13 may be divided into three parts, where the first part is the vaporization cavity 125 close to the air inlet end, the third part is the air outlet channel 131 close to the air outlet end, and the second part communicates the vaporization cavity 125 with the air outlet channel 131. The condensed liquid collecting structure 14 is provided on the second part. In another optional embodiment, the condensed liquid collecting structure 14 is provided in the first part and the second part, and the condensed liquid collecting structure 14 and the bottom of the vaporization cavity 125 are provided at intervals.

The air outlet hole 128 is provided on the air outlet end of the mounting base 1, and the air outlet hole 128 extends in a direction away from the upper base body 11 to form an air outlet tube 132 and further form the air outlet channel 131. The condensed liquid collecting structure 14 includes a first liquid collecting portion 141 and a second liquid collecting portion 143, where the first liquid collecting portion 141 is provided on a blocking portion 142; and the second liquid collecting portion 143 is provided on an outer wall of the mounting base 1, and the second liquid collecting portion 143 is in communication with the first liquid collecting portion 141.

In an optional embodiment, the air outlet hole 128 is provided on the air outlet end of the mounting base 1, the air outlet end is provided on the upper base body 11, and the air outlet hole 128 extends in the direction away from the upper base body 11 to form the air outlet tube 132 and further form the air outlet channel 131, where the air outlet hole 128 and the air outlet tube 132 are integrally formed. In another optional embodiment, the air outlet tube 132 and the upper base body 11 are independently provided, one end of the air outlet tube 132 is inserted in the air outlet hole 128, and another end is exposed to the outside of the upper base body 11.

The blocking portion 142 is provided on the mounting base 1. Specifically, the blocking portion 142 is provided on the upper base body 11. The blocking portion 142 is a U-shaped structure, an opening 31 of the blocking portion 142 directly faces the vaporization cavity 125, and a bottom of the blocking portion 142 directly faces the air outlet channel 131. The blocking portion 142 includes a first airflow guide plate 1421, a second airflow guide plate 1422, and a third airflow guide plate 1423. The first airflow guide plate 1421 is provided perpendicular to the air outlet channel 131, the first airflow guide plate 1421 is provided on an end portion of the air outlet channel 131 close to the vaporization cavity 125, and the first airflow guide plate 1421 and the end portion of the air outlet channel 131 are provided at intervals. The second airflow guide plate 1422 is connected to a side of the first airflow guide plate 1421, and the third airflow guide plate 1423 is connected to another side of the first airflow guide plate 1421. The second airflow guide plate 1422 is provided opposite to the third airflow guide plate 1423 and is provided on one side of the first airflow guide plate 1421 away from the air outlet channel 131, and the second airflow guide plate 1422 and the third airflow guide plate 1423 are exposed through a window 117 provided on the mounting base 1. In an optional embodiment, the first airflow guide plate 1421, the second airflow guide plate 1422, and the third airflow guide plate 1423 are integrally formed. The blocking portion 142 and an inner wall of the upper base body 11 form an inner cavity for accommodating the vaporization core 2, and the liquid storage tank 4 is in communication with the inner cavity of the blocking portion 142.

Referring to FIG. 6 , a window 117 is provided on a side wall of the upper base body 11. The window 117 is a groove structure with an opening 31 facing toward the lower base body 12, and the window 117 communicates a gap between the air outlet channel 131 and the first airflow guide plate 1421 with the outside of the upper base body 11. In addition, the window 117 further exposes opposite surfaces of the second airflow guide plate 1422 and the third airflow guide plate 1423, and the window 117 communicates the vaporization cavity 125 with the outside of the upper base body 11. In a specific embodiment, there are two windows 117, and the two windows 117 are provided on side walls provided opposite to each other.

Referring to FIG. 7 , junctions of the first airflow guide plate 1421 with the second airflow guide plate 1422 and the third airflow guide plate 1423 in the blocking portion 142 are provided obliquely, and a width of a surface of the first airflow guide plate 1421 close to the air outlet channel 131 is less than a width between a surface of the second airflow guide plate 1422 exposed through the window 117 and a surface of the third airflow guide plate 1423 exposed through the window 117. In an optional embodiment, referring to FIG. 8 , FIG. 8 is a schematic structural diagram of a first embodiment of an upper base body in an electronic vaporization device according to this application. The junctions of the first airflow guide plate 1421 with the second airflow guide plate 1422 and the third airflow guide plate 1423 are inclined surfaces. In another optional embodiment, referring to FIG. 9 . the junctions of the first airflow guide plate 1421 with the second airflow guide plate 1422 and the third airflow guide plate 1423 are cambered surfaces. In this way, it is convenient for the first airflow guide plate 1421 to collect condensed liquid in the air outlet channel 131 and guide the liquid to the second airflow guide plate 1422 and/or the third airflow guide plate 1423.

The condensed liquid collecting structure 14 is provided in the airflow channel 13. The condensed liquid collecting structure 14 is provided between the vaporization cavity 125 and the air outlet channel 131, or may be provided between the air outlet channel 131 and the bottom of the vaporization cavity 125.

In an optional embodiment, referring to FIG. 6 , the first airflow guide plate 1421 is a V-shaped structure. The V-shaped structure serves as the first liquid collecting portion 141 and is configured to collect e-liquid condensed and left in the air outlet channel 131, and the e-liquid collected in the V-shaped structure may overflow to the second airflow guide plate 1422 and/or the third airflow guide plate 1423. In another optional embodiment, the first airflow guide plate 1421 is a U-shaped structure. The U-shaped structure serves as the first liquid collecting portion 141 and is configured to collect e-liquid condensed and left in the air outlet channel 131, and the e-liquid collected in the U-shaped structure may overflow to the second airflow guide plate 1422 and/or the third airflow guide plate 1423. In another optional embodiment, to better lock the condensed liquid, a third capillary groove 1431 is provided on the first airflow guide plate 1421. The third capillary groove 1431 serves as the first liquid collecting portion 141, and end portions of the third capillary groove 1431 are in communication with the cambered surfaces or the inclined surfaces, so that the condensed liquid in the third capillary groove 1431 may overflow to the second airflow guide plate 1422 and/or the third airflow guide plate 1423. In an optional embodiment, the third capillary groove 1431 may alternatively extend to the second airflow guide plate 1422 and/or the third airflow guide plate 1423. Specifically, the end portions of the third capillary groove 1431 are in direct communication with the second liquid collecting portion 143.

Referring to FIG. 9 , FIG. 9 is a schematic structural diagram of a second embodiment of an upper base body in an electronic vaporization device according to this application. A fourth capillary groove 1432 is provided on the outer wall of the mounting base 1, and the fourth capillary groove 1432 is transversely provided on the outer wall of the mounting base 1. That is, a direction in which the fourth capillary groove 1432 is provided is perpendicular to a flowing direction of the airflow channel 13. The fourth capillary groove 1432 serves as the second liquid collecting portion 143. The fourth capillary groove 1432 is provided on an outer wall on two sides of the window 117 of the mounting base 1, end portions of the fourth capillary groove 1432 are exposed through the window 117 provided on the mounting base 1, the end portions of the fourth capillary groove 1432 are in communication with the second airflow guide plate 1422 and the third airflow guide plate 1423, and the end portions of the fourth capillary groove 1432 are in direct communication with the end portions of the third capillary groove 1431. A bottom of the fourth capillary groove 1432 is flush with the surface of the second airflow guide plate 1422 or the third airflow guide plate 1423 exposed through the window 117. In an optional embodiment, there may be a plurality of fourth capillary grooves 1432 provided in parallel, and end portions of the plurality of fourth capillary grooves 1432 away from the window 117 are in communication with each other. End portions of the plurality of fourth capillary grooves 1432 close to the window 117 may be all connected to the second airflow guide plate 1422 and the third airflow guide plate 1423, and the end portions of the plurality of fourth capillary grooves 1432 close to the window 117 may be partially connected to the second airflow guide plate 1422 and/or the third airflow guide plate 1423.

The fourth capillary groove 1432 may collect the condensed liquid overflowed from the first liquid collecting portion 141 through a capillary force. That is, when the condensed liquid in the third capillary groove 1431 overflows to the exposed surface of the second airflow guide plate 1422 and/or the third airflow guide plate 1423, when the condensed liquid overflowed to the second airflow guide plate 1422 and/or the third airflow guide plate 1423 gathers and does not exceed surface tension of the condensed liquid or does not exceed gravity of the condensed, namely, when the condensed liquid does not depart from the third airflow guide plate 1423 or the second airflow guide plate 1422, the end portion of the fourth capillary groove 1432 in communication with the second airflow guide plate 1422 or the third airflow guide plate 1423 absorbs the condensed liquid through a capillary force, to absorb the condensed liquid on the second airflow guide plate 1422 or the third airflow guide plate 1423 to the fourth capillary groove 1432. In a process that the electronic vaporization device 100 is transversely placed, the condensed liquid may flow, due to the action of gravity, to a cavity formed by the window 117 and a vaporizer shell 209. The end portion of the fourth capillary groove 1432 is exposed through the window 117, namely, the fourth capillary groove 1432 is in communication with the window 117, the end portion of the fourth capillary groove 1432 may absorb, through a capillary force, the condensed liquid in the cavity formed by the window 117 and the vaporizer shell 209, to collect the condensed liquid in the fourth capillary groove 1432. In an optional embodiment, referring to FIG. 9 , a liquid collecting hole 1435 may be further provided on the outer wall of the mounting base 1. The liquid collecting hole 1435 is provided on the end portion of the fourth capillary groove 1432 away from the window 117, and the liquid collecting hole 1435 may be in communication with end portions of all the fourth capillary grooves 1432 away from the window 117 or may be in communication with ends of some fourth capillary grooves 1432 away from the window 117.

The vent channel 15 is in communication with the vaporization cavity 125. An air guide groove structure 151 is provided on the upper base body 11. In an optional embodiment, the air guide groove structure 151 is provided on the outer wall of the upper base body 11, a direction in which the air guide groove structure 151 is provided extends from an end portion close to the lower base body 12 to an end portion provided with the air outlet hole 128 of the upper base body 11, the air guide groove structure is in direct communication with an air guide hole structure 152 on an end surface provided with the air outlet hole 128 of the upper base body 11, and the air inlet hole 126 communicates the air guide groove structure 151 with the liquid storage tank 4. In this embodiment, the vent channel 15 includes a capillary vent groove provided on the outer wall of the upper base body 11. The capillary vent groove is the air guide groove structure 151 in this application, one end of the capillary vent groove is connected to the liquid storage tank 4, and one end of the capillary vent groove away from liquid storage tank 4 is an air inlet. The air inlet is provided on the end portion of the upper base body 11 close to the lower base body 12, and the air inlet is in communication with the vaporization cavity 125.

The vaporizer shell 209 covers an opening 31 of air guide groove structure 151 to form the vent channel 15, and the vent channel 15 is configured to transmit external air to the liquid storage tank 4, to balance the air pressure in the liquid storage tank 4 and the vaporization cavity 125. One end of the vent channel 15 is in communication with the liquid storage tank 4 through the air guide hole structure 152, and another end of the vent channel 15 is provided on the end portion of the upper base body 11 close to the lower base body 12, so that the vent channel 15 is in communication with the vaporization cavity 125 through a gap between the upper base body 11 and the lower base body 12. In an exemplary embodiment, referring to FIG. 10 , FIG. 10 is a schematic structural diagram of a first embodiment of a lower base body in an electronic vaporization device according to this application. A vent communication groove 159 is provided on the lower base body 12, and the vent communication groove 159 is configured to communicate the vent channel 15 with the vaporization cavity 125. The vent communication groove 159 is provided at corresponding positions of the vent channel 15 and the lower base body 12.

A fifth capillary groove 1433 is further provided on the upper base body 11, the condensed liquid collecting structure 14 includes the fifth capillary groove 1433, and the fifth capillary groove 1433 is provided on the outer wall of the upper base body 11. The fifth capillary groove 1433 is provided on two sides of the vent channel 15 and is in communication with the vent channel 15, and the fifth capillary groove 1433 is configured to collect liquid leaked from the air guide hole structure 152 to the vent channel 15. There may be a plurality of fifth capillary grooves 1433, and a direction in which the plurality of fifth capillary grooves 1433 are provided may be the same as the direction in which the fourth capillary groove 1432 is provided, namely, the direction in which the fifth capillary groove 1433 is provided is perpendicular to a direction in which the vent channel 15 is provided. In another optional embodiment, an end portion of the fifth capillary groove 1433 away from the vent channel 15 is in communication with the end portion of the fourth capillary groove 1432 away from the window 117. In another optional embodiment, an end portion of the fifth capillary groove 1433 away from the vent channel 15 is in communication with the liquid collecting hole 1435.

In an optional embodiment, referring to FIG. 5 , the condensed liquid collecting structure 14 includes a sixth capillary groove 1434. The sixth capillary groove 1434 is provided on an inner wall of the air outlet channel 131, and the sixth capillary groove 1434 is configured to absorb condensed liquid in the air outlet channel 131, to prevent the condensed liquid in the air outlet channel 131 from dripping to the vaporization cavity 125.

When the air pressure in the liquid storage tank 4 increases, the liquid in the liquid storage tank 4 is pressed to overflow to the vent channel 15, and the fifth capillary groove 1433 may lock the liquid in the vent channel 15 through a capillary force. When the air pressure in the liquid storage tank 4 decreases, the air pressure in the fifth capillary groove 1433 is greater than the air pressure in the liquid storage tank 4, and the liquid in the fifth capillary groove 1433 refluxes to the liquid storage tank 4 through the vent channel 15.

A first seal member 316 is provided on one end of the vent channel 15 close to the liquid storage tank 4. Referring to FIG. 11 , FIG. 11 is a schematic structural diagram of a first seal member in an electronic vaporization device according to this application. An air outlet through hole 162 and a liquid flowing through hole 163 are provided on the first seal member 316. The liquid in the liquid storage tank 4 enters a liquid flowing cavity 116 through the liquid flowing through hole 163, and the air outlet through hole 162 is configured to run through the air outlet tube 132. A one-way valve 161 matching an end opening of the vent channel 15 is provided on the first seal member 316, and the one-way valve 161 is configured to block the liquid in the liquid storage tank 4 from leaking to the vent channel 15; and when the air pressure in the liquid storage tank 4 is less than the external air pressure, air in the vent channel 15 may push the one-way valve 161 to cause the one-way valve 161 to open toward the liquid storage tank 4, so that the air enters the liquid storage tank 4, and the leaked liquid refluxes to the liquid storage tank 4 through the vent channel 15.

The mounting base 1 includes a housing 113 and a separating plate 114 provided in the housing 113, the separating plate 114 includes a liquid flowing hole 111, and the liquid flowing hole 111 is connected to the liquid storage tank 4, namely, the liquid flowing hole 111 is in communication with the liquid storage tank 4.

In this embodiment, the separating plate 114 divides a space in the housing 113 into the liquid flowing cavity 116 and an access cavity 115, the liquid flowing cavity 116 and the access cavity 115 are in communication with each other through the separating plate 114, and the air outlet channel 131 is further provided on same sides of the housing 113 and the liquid flowing cavity 116. The mounting base 1 is embedded in the vaporizer shell 209, a vent tube is connected to the air outlet channel 131, and vapor in the vaporization cavity 125 is guided to a mouth of a user through the airflow channel 13 and the vent tube.

In other embodiments, the mounting base 1 may alternatively not be embedded in the vaporizer shell 209 provided that the liquid flowing hole 111 is in communication with the liquid storage tank 4. For example, the liquid storage tank 4 is a flexible liquid tank or a liquid storage ball and connected to the separating plate 114, and the liquid storage tank 4 is in communication with the liquid flowing hole 111.

The separating plate 114 may be a plate with the liquid flowing hole 111 at a middle part, or the separating plate 114 is a plate with a plurality of liquid flowing holes 111 at the middle part, provided that the liquid flowing hole 111 on the separating plate 114 can be in communication with the liquid storage tank 4, which is not limited in this application.

The vaporization core 2 is assembled in the access cavity 115 and blocks the liquid flowing cavity 116, the vaporization core 2 is in communication with the liquid flowing cavity 116, and the liquid flowing cavity 116 and the liquid flowing hole 111 guide e-liquid to the vaporization core 2, to help the vaporization core 2 vaporize the e-liquid to form vapor.

A seal member 3 is provided on one side of the separating plate 114 facing away from the liquid storage tank 4 and located between the separating plate 114 and the vaporization core 2, and the vaporization core 2 abuts against the seal member 3 to prevent the e-liquid from leaking. The seal member 3 includes an opening 31 in communication with the liquid flowing hole 111, so that the opening 31 is in communication with the liquid storage tank 4, and the e-liquid enters the vaporization core 2 through the opening 31.

The lower base body 12 is connected to and seals one end of the upper base body 11 facing away from the liquid storage tank 4, and the lower base body 12 abuts against the vaporization core 2, so that the vaporization core 2 abuts against the seal member 3, and a space formed between the upper base body 11, the vaporization core 2, and the lower base body 12 forms the vaporization cavity 125. The vaporization core 2 vaporizes the e-liquid and forms vapor in the vaporization cavity 125, and the vaporization cavity 125 is in communication with the airflow channel 13.

In another optional embodiment, an air guide groove structure 151 is provided between the mounting base 1 and the seal member 3, and the air guide groove structure 151 communicates the liquid storage tank 4 with external air. After e-liquid is stored in a liquid storage space, the e-liquid liquid seals the air guide groove structure 151.

The air guide groove structure 151 may communicate the vaporization cavity 125 with the liquid storage tank 4, and further communicate the liquid storage tank 4 with the external air through the vaporization cavity 125.

In this application, the air guide groove structure 151 is provided between the mounting base 1 and the seal member 3, and the air guide groove structure 151 communicates the liquid storage tank 4 with the vaporization cavity 125. Therefore, by adjusting the e-liquid stored in the air guide groove structure 151, the air pressure and hydraulic pressure in the liquid storage tank 4, capillary tension and resistance of the air guide groove structure 151 to the e-liquid, and the air pressure reach dynamic balance, thereby preventing occurrence of non-smooth liquid flowing and liquid leakage of the vaporizer 10 and improving the quality of the vaporizer 10.

Specifically, when the air pressure in the liquid storage tank 4 decreases to a negative pressure threshold, the air in the vaporization cavity 125 may enter the liquid storage tank 4 through the air guide groove structure 151 to implement ventilation. Therefore, the air pressure in the liquid storage tank 4 increases, thereby preventing occurrence of non-smooth liquid flowing caused by excessively low air pressure in the cavity and improving the quality of the vaporizer 10. When the air pressure in the liquid storage tank 4 increases due to heating, the amount of e-liquid entering the air guide groove structure 151 may increase, to further appropriately decrease the air pressure in the liquid storage tank 4, thereby preventing occurrence of liquid leakage and also improving the quality of the vaporizer 10.

In other embodiments, the air guide groove structure 151 is provided on the seal member 3. Specifically, the air guide groove structure 151 is provided on one side of the seal member 3 facing the separating plate 114 and/or one side of the seal member 3 facing the vaporization core 2, or the air guide groove structure 151 may be alternatively provided in the seal member 3.

For example, referring to FIG. 12 , FIG. 12 is a schematic structural diagram of an embodiment of a seal member in an electronic vaporization device according to this application. Six air guide groove structures 151 are provided on one side of the seal member 3 facing the separating plate 114 and/or one side of the seal member 3 facing the vaporization core 2, which can conveniently adjust the air pressure in the liquid storage tank 4.

In an embodiment, as shown in FIG. 13 , FIG. 13 is a schematic structural diagram of a first embodiment of a vent channel in an electronic vaporization device according to this application. The air guide groove structure 151 is provided on one side of the separating plate 114 facing away from the liquid storage tank 4, and the air guide groove structure 151 is sealed by the seal member 3, so that the air guide groove structure only exposes an air guide hole to be in communication with the liquid flowing hole 111 and exposes the air inlet hole 126 to be in communication with the vaporization cavity 125.

The air guide groove structures 151 are all located on the side of the separating plate 114 facing away from the liquid storage tank 4, so that e-liquid in the air guide groove structures 151 has the same hydraulic pressure value.

The air guide groove structure 151 may be circuitously provided on the separating plate 114, which may increase the flowing resistance of leakage of the e-liquid in the air guide groove structure 151 and extend a leakage path of the e-liquid. The air guide groove structure 151 may be alternatively linearly provided, provided that the air guide groove structure 151 can communicate the liquid flowing hole 111 with air, which is not limited in this application.

There may be alternatively a plurality of air guide groove structures 151, the plurality of air guide groove structures 151 may perform ventilation at the same time to increase the air pressure in the liquid storage tank 4, and liquid may alternatively enter the plurality of air guide groove structures 151 at the same time to decrease the air pressure in the liquid storage tank 4. Therefore, the convenience of adjusting the air pressure in the liquid storage tank 4 can be increased by using the plurality of air guide groove structures 151, so that the air pressure in the liquid storage tank 4 can be quickly adjusted. There may be alternatively one air guide groove structure 151, and a quantity of the air guide groove structures 151 is not limited in this application.

A buffer groove 153 is further provided on the side of the separating plate 114 facing away from the liquid storage tank 4. The air guide groove structure 151 flows through the buffer groove 153, a cross-sectional area of the buffer groove 153 in a path direction of the air guide groove structure 151 is greater than a cross-sectional area of the air guide groove structure 151 in the same direction, and the seal member 3 seals the air guide groove structure 151 and the buffer groove 153, to prevent liquid leakage of the air guide groove structure 151 and the buffer groove 153.

The buffer groove 153 is configured to buffer e-liquid, and the cross-sectional area of the buffer groove 153 in the path direction of the air guide groove structure 151 is greater than the cross-sectional area of the air guide groove structure 151 in the same direction, so that the liquid storage capability of the air guide groove structure 151 can be improved to prevent the e-liquid from leaking from the air guide groove structure 151.

It is found through research that, a depth of the air guide groove structure 151 should be set to be from 0.1 mm to 0.5 mm, a width of the air guide groove structure 151 in a direction perpendicular to the path direction thereof should be set to be from 0.1 mm to 0.5 mm, a width of the buffer groove 153 is greater than the width of the air guide groove structure 151, and a depth of the buffer groove 153 is greater than or equal to the depth of the air guide groove structure 151.

Specifically, the air inlet hole 126 of one air guide groove structure 151 is adjacent to a vent opening of another air guide groove structure 151, a vent opening of the air guide groove structure 151 is adjacent to the air inlet hole 126 of the another air guide groove structure 151, the two air guide groove structures 151 are engaged with each other and are provided surrounding the liquid flowing hole 111, the vent openings are in communication with the liquid storage tank 4, and the air inlet holes 126 are in communication with the air. Therefore, the air guide groove structure 151 may have a long length and can store more e-liquid, the air pressure in the liquid storage tank 4 can be also adjusted conveniently, and the vent openings of the two air guide groove structures 151 are provided at different positions, so that the liquid flowing difficulty of the e-liquid may be prevented from increasing due to aggregation of bubbles generated by vent openings at the same position.

The length and the cross-sectional area of the air guide groove structure 151 and the length and the cross-sectional area of the buffer groove 153 may be set according to a specification of the vaporizer 10, to help adjust the air pressure in the liquid storage tank 4.

Specifically, a vent channel 15 is provided on the separating plate 114 of the upper base body 11, and the vent channel 15 includes an air guide hole structure 152 and an air guide groove structure 151. The air guide hole structure 152 penetrates the separating plate 114, the air guide hole structure 152 and the liquid flowing hole 111 are provided at intervals, and the air guide hole structure 152 communicates the liquid flowing cavity 116 with the access cavity 115. The air guide groove structure 151 is provided on one side of the separating plate 114 facing away from the liquid flowing cavity 116, one end of the air guide groove structure 151 is in communication with one end of the air guide hole structure 152 facing away from the liquid flowing cavity 116, and another end of the air guide groove structure 151 extends in a direction away from the air guide hole structure 152 and is in communication with the vaporization cavity 125. In another optional embodiment, the other end of the air guide groove structure 151 may be alternatively in direct communication with the external air. A cross section of the air guide hole structure 152 may be in at least one shape of a circle, an ellipse, a rectangle, or a semi-circle, or may be in another shape which facilitates ventilation. There may be one or a plurality of air guide groove structures 151 in communication with the air guide hole structure 152, and a quantity of the air guide groove structures 151 may be designed according to actual requirements. A silica gel seal ring is provided between the upper base body 11 and the vaporization core 2, the silica gel seal ring abuts against one end of the air guide hole structure 152 connected to the air guide groove structure 151, and a side wall of the silica gel seal ring abuts against the opening 31 of the air guide groove structure 151, so that the air guide hole structure 152 and the air guide groove structure 151 form the vent channel 15 between the separating plate 114 and the silica gel seal ring. The size may be the depth of the air guide groove structure 151 and the width of the air guide groove structure 151.

In a specific embodiment, referring to FIG. 14 , FIG. 14 is a schematic structural diagram of a second embodiment of a vent channel in an electronic vaporization device according to this application. The vent channel 15 includes the air guide hole structure 152 and the air guide groove structure 151. The air guide hole structure 152 is provided on the separating plate 114 and is provided at intervals with the liquid flowing hole 111. Specifically, there may be one or a plurality of air guide hole structures 152. The air guide hole structure 152 includes a first air guide hole 1521 and a second air guide hole 1522, the air guide groove structure 151 includes a first air guide groove 1511 and a second air guide groove 1512, and the first air guide hole 1521 and the second air guide hole 1522 are provided on two sides of the liquid flowing hole 111 at intervals and symmetrically. The first air guide groove 1511 is in communication with one end of the first air guide hole 1521 facing away from the liquid flowing cavity 116, the second air guide groove 1512 is in communication with one end of the second air guide hole 1522 facing away from the liquid flowing cavity 116, and the first air guide groove 1511 and the second air guide groove 1512 both extend along an inner wall of the access cavity 115 in a direction away from the first air guide hole 1521 and the second air guide hole 1522. Therefore, one end of the first air guide groove 1511 away from the first air guide hole 1521 is in communication with the vaporization cavity 125; and one end of the second air guide groove 1512 away from the second air guide hole 1522 is in communication with the vaporization cavity 125. The first air guide hole 1521 is in communication with the first air guide groove 1511; and the second air guide hole 1522 is in communication with the second air guide groove 1512. An end portion of the first air guide groove 1511 away from the first air guide hole 1521 and an end portion of the second air guide groove 1512 away from the second air guide hole 1522 extend along the inner wall of the access cavity 115 in a direction away from the separating plate 114. The first air guide groove 1511 and the second air guide groove 1512 may be provided symmetrically or asymmetrically, provided that air in the vaporization cavity 125 can enter the liquid storage tank 4 through the first air guide groove 1511 and the second air guide groove 1512 and the first air guide hole 1521 and the second air guide hole 1522 connected thereto. In another optional embodiment, the end portions of the first air guide groove 1511 away from the first air guide hole 1521 and the second air guide groove 1512 away from the second air guide hole 1522 pass through the housing 113 and are in direct communication with the external air.

In another optional embodiment, the end portion of the first air guide groove 1511 away from the first air guide hole 1521 is in communication with the vaporization cavity 125 and is in communication with the external air through the air inlet hole 126 at the bottom of the vaporization cavity 125, and the end portion of the second air guide groove 1512 away from the second air guide hole 1522 passes through the housing 113 and is in direct communication with the external air.

In another optional embodiment, referring to FIG. 15 , FIG. 15 is a schematic structural diagram of a third embodiment of a vent channel in an electronic vaporization device according to this application. The air guide groove structure 151 further includes a third air guide groove 1513 and a fourth air guide groove 1514. One end of the third air guide groove 1513 is in communication with the first air guide hole 1521, and another end of the third air guide groove 1513 is in communication with the liquid flowing hole 111. One end of the fourth air guide groove 1514 is in communication with the second air guide hole 1522, and another end of the fourth air guide groove 1514 is in communication with the liquid flowing hole 111. The third air guide groove 1513 can transmit the air transmitted in the first air guide groove 1511 through the liquid flowing hole 111, and the fourth air guide groove 1514 can transmit the air transmitted in the second air guide groove 1512 through the liquid flowing hole 111, so that the first air guide hole 1521, the second air guide hole 1522, and the liquid flowing hole 111 perform air transmission at the same time, thereby shortening a duration for balancing the air pressure in the liquid storage tank 4 and the external air pressure.

In another optional embodiment, one end of the first air guide groove 1511 is in communication with the vaporization cavity 125, and another end is in communication with the first air guide hole 1521. One end of the third air guide groove is in direct communication with the vaporization cavity 125 or the external air, and another end is in communication with the liquid flowing hole 111. One end of the second air guide groove 1512 is in communication with the vaporization cavity 125, and another end is in communication with the second air guide hole 1522. One end of the fourth air guide groove 1514 is in direct communication with the vaporization cavity 125 or the external air, and another end is in communication with the liquid flowing hole 111.

In a specific embodiment, referring to FIG. 16 , FIG. 16 is a schematic structural diagram of a fourth embodiment of a vent channel in an electronic vaporization device according to this application. The vent channel 15 includes an air guide hole structure 152 and an air guide groove structure 151 connected to the air guide hole structure 152. The air guide groove structure 151 includes a first air guide groove 1511 and a second air guide groove 1512, and the air guide hole structure 152 includes a first air guide hole 1521 and a second air guide hole 1522. The first air guide hole 1521 and the second air guide hole 1522 are both provided on the separating plate 114 and provided at intervals with the liquid flowing hole 111. To cause the air pressure at various positions in the liquid storage tank 4 to be consistent, the first air guide hole 1521 and the second air guide hole 1522 are symmetrically provided on two sides of the liquid flowing hole 111. The first air guide groove 1511 and the second air guide groove 1512 are symmetrically provided on two sides of the liquid flowing hole 111, and the first air guide groove 1511 and the second air guide groove 1512 are provided on the side of the separating plate 114 facing away from the liquid flowing cavity 116. The first air guide groove 1511 is in communication with one end of the first air guide hole 1521 facing away from the liquid flowing cavity 116, two ends of the first air guide groove 1511 extend along the inner wall of the access cavity 115 in a direction away from the first air guide hole 1521, and the two ends of the first air guide groove 1511 are both in communication with the vaporization cavity 125. The second air guide groove 1512 is in communication with one end of the second air guide hole 1522 facing away from the liquid flowing cavity 116, two ends of the second air guide groove 1512 extend along the inner wall of the access cavity 115 in a direction away from the second air guide hole 1522, and the two ends of the second air guide groove 1512 are both in communication with the vaporization cavity 125.

In another optional embodiment, an end portion of the first air guide groove 1511 away from the first air guide hole 1521 and an end portion of the second air guide groove 1512 away from the second air guide hole 1522 can both pass through the housing 113 and be in direct communication with the external air.

In another optional embodiment, at least one end portion of the end portion of the first air guide groove 1511 away from the first air guide hole 1521 and the end portion of the second air guide groove 1512 away from the second air guide hole 1522 can pass through the housing 113 and be in direct communication with the external air, and the remaining end portion is in communication with the vaporization cavity 125 to be in communication with the external air through the air inlet hole 126 at the bottom of the vaporization cavity 125.

In another optional embodiment, at least one end portion of the end portion of the first air guide groove 1511 away from the first air guide hole 1521 and the end portion of the second air guide groove 1512 away from the second air guide hole 1522 is in communication with the vaporization cavity 125 to be in communication with the external air through the air inlet hole 126 at the bottom of the vaporization cavity 125, and the remaining end portion can pass through the housing 113 and be in direct communication with the external air. In another optional embodiment, referring to FIG. 17 , FIG. 17 is a schematic structural diagram of a fifth embodiment of a vent channel in an electronic vaporization device according to this application. The air guide groove structure 151 further includes a third air guide groove 1513 and a fourth air guide groove 1514. One end of the third air guide groove 1513 is in communication with the first air guide hole 1521, and another end is in communication with the liquid flowing hole 111. One end of the fourth air guide groove 1514 is in communication with the second air guide hole 1522, and another end is in communication with the liquid flowing hole 111. The third air guide groove 1513 can transmit the air transmitted in the first air guide groove 1511 through the liquid flowing hole 111, and the fourth air guide groove 1514 can transmit the air transmitted in the second air guide groove 1512 through the liquid flowing hole 111, so that the first air guide hole 1521, the second air guide hole 1522, and the liquid flowing hole 111 perform air transmission at the same time, thereby shortening a duration for balancing the air pressure in the liquid storage tank 4 and the external air pressure.

In another optional embodiment, one end of the first air guide groove 1511 is in communication with the vaporization cavity 125 or the external air, and another end is in communication with the first air guide hole 1521. One end of the third air guide groove 1513 is in direct communication with the vaporization cavity 125, and another end is in communication with the liquid flowing hole 111. One end of the second air guide groove 1512 is in communication with the vaporization cavity 125, and another end is in communication with the second air guide hole 1522. One end of the fourth air guide groove 1514 is in direct communication with the vaporization cavity 125, and another end is in communication with the liquid flowing hole 111.

In a specific embodiment, referring to FIG. 18 , FIG. 18 is a schematic structural diagram of a sixth embodiment of a vent channel in an electronic vaporization device according to this application. The vent channel 15 includes an air guide hole structure 152 and an air guide groove structure 151 connected to the air guide hole structure 152. The air guide groove structure 151 includes a first air guide groove 1511, a second air guide groove 1512, and a connection groove 158, and the air guide hole structure 152 includes a first air guide hole 1521 and a second air guide hole 1522. The first air guide hole 1521 and the second air guide hole 1522 are both provided on the separating plate 114 and provided at intervals with the liquid flowing hole 111. To cause the air pressure at various positions in the liquid storage tank 4 to be consistent, the first air guide hole 1521 and the second air guide hole 1522 are symmetrically provided on two sides of the liquid flowing hole 111. The first air guide groove 1511 and the second air guide groove 1512 are provided on the side of the separating plate 114 facing away from the liquid flowing cavity 116. The first air guide groove 1511 is in communication with one end of the first air guide hole 1521 facing away from the liquid flowing cavity 116, two ends of the first air guide groove 1511 extend along the inner wall of the access cavity 115 in a direction away from the first air guide hole 1521, and the two ends of the first air guide groove 1511 are both in communication with the vaporization cavity 125. The second air guide groove 1512 is in communication with one end of the second air guide hole 1522 facing away from the liquid flowing cavity 116, two ends of the second air guide groove 1512 extend along the inner wall of the access cavity 115 in a direction away from the second air guide hole 1522, and the two ends of the second air guide groove 1512 are both in communication with the vaporization cavity 125. To enhance the stability of air transmission, the second air guide groove 1512 and the first air guide groove 1511 may be in communication with each other through the connection groove 158. The connection groove 158 can conduct the air transmitted in the first air guide groove 1511 to the second air guide hole 1522 and can also conduct the air transmitted in the second air guide groove 1512 to the first air guide hole 1521, which more facilitates to balance the air pressure in the liquid storage tank 4 and the external air pressure.

In another optional embodiment, an end portion of the first air guide groove 1511 away from the first air guide hole 1521 and an end portion of the second air guide groove 1512 away from the second air guide hole 1522 can both pass through the housing 113 and be in direct communication with the external air.

In another optional embodiment, at least one end portion of the end portion of the first air guide groove 1511 away from the first air guide hole 1521 and the end portion of the second air guide groove 1512 away from the second air guide hole 1522 can pass through the housing 113 and be in direct communication with the external air, and the remaining end portion is in communication with the vaporization cavity 125 to be in communication with the external air through the air inlet hole 126 at the bottom of the vaporization cavity 125.

In another optional embodiment, at least one end portion of the end portion of the first air guide groove 1511 away from the first air guide hole 1521 and the end portion of the second air guide groove 1512 away from the second air guide hole 1522 is in communication with the vaporization cavity 125 to be in communication with the external air through the air inlet hole 126 at the bottom of the vaporization cavity 125, and the remaining end portion can pass through the housing 113 and be in direct communication with the external air.

In another optional embodiment, referring to FIG. 19 , FIG. 19 is a schematic structural diagram of a seventh embodiment of a vent channel in an electronic vaporization device according to this application. The air guide groove structure 151 further includes a third air guide groove 1513 and a fourth air guide groove 1514. One end of the third air guide groove 1513 is in communication with the first air guide hole 1521, and another end is in communication with the liquid flowing hole 111. One end of the fourth air guide groove 1514 is in communication with the second air guide hole 1522, and another end is in communication with the liquid flowing hole 111. The third air guide groove 1513 can transmit the air transmitted in the first air guide groove 1511 through the liquid flowing hole 111, and the fourth air guide groove 1514 can transmit the air transmitted in the second air guide groove 1512 through the liquid flowing hole 111, so that the first air guide hole 1521, the second air guide hole 1522, and the liquid flowing hole 111 perform air transmission at the same time, thereby shortening a duration for balancing the air pressure in the liquid storage tank 4 and the external air pressure.

In another optional embodiment, one end of the first air guide groove 1511 is in communication with the vaporization cavity 125 or the external air, and another end is in communication with the first air guide hole 1521. One end of the third air guide groove 1513 is in direct communication with the vaporization cavity 125 or the external air, and another end is in communication with the liquid flowing hole 111. One end of the second air guide groove 1512 is in communication with the vaporization cavity 125 or the external air, and another end is in communication with the second air guide hole 1522. One end of the fourth air guide groove 1514 is in direct communication with the vaporization cavity 125 or the external air, and another end is in communication with the liquid flowing hole 111.

In a specific embodiment, referring to FIG. 20 , FIG. 20 is a schematic structural diagram of an eighth embodiment of a vent channel in an electronic vaporization device according to this application. The vent channel 15 includes an air guide hole structure 152 and an air guide groove structure 151 connected to the air guide hole structure 152. The air guide groove structure 151 includes a first air guide groove 1511 and a second air guide groove 1512, and the air guide hole structure 152 includes a first air guide hole 1521 and a second air guide hole 1522. The first air guide hole 1521 and the second air guide hole 1522 are both provided on the separating plate 114 and provided at intervals with the liquid flowing hole 111. To cause the air pressure at various positions in the liquid storage tank 4 to be consistent, the first air guide hole 1521 and the second air guide hole 1522 are symmetrically provided on two sides of the liquid flowing hole 111. The first air guide groove 1511 and the second air guide groove 1512 are symmetrically provided on two sides of the liquid flowing hole 111, and the first air guide groove 1511 and the second air guide groove 1512 are provided on the side of the separating plate 114 facing away from the liquid flowing cavity 116. One end of the first air guide groove 1511 is in communication with an end portion of the first air guide hole 1521 facing away from the liquid flowing cavity 116, and another end of the first air guide groove 1511 extends along the separating plate 114 to a position close to the second air guide hole 1522, and extends along the inner wall of the access cavity 115 and is in communication with the vaporization cavity 125. One end of the second air guide groove 1512 is in communication with an end portion of the second air guide hole 1522 facing away from the liquid flowing cavity 116, and another end of the second air guide groove 1512 extends along the separating plate 114 to a position close to the first air guide hole 1521, and extends along the inner wall of the access cavity 115 and is in communication with the vaporization cavity 125, to be in communication with the external air through the air inlet hole 126 provided at the bottom of the vaporization cavity 125.

In another optional embodiment, an end portion of the first air guide groove 1511 away from the first air guide hole 1521 and an end portion of the second air guide groove 1512 away from the second air guide hole 1522 pass through the housing 113 and are in direct communication with the external air.

In another optional embodiment, one end portion of the end portion of the first air guide groove 1511 away from the first air guide hole 1521 and the end portion of the second air guide groove 1512 away from the second air guide hole 1522 pass through the housing 113 and is in direct communication with the external air, and another end portion is in communication with the vaporization cavity 125 to be in communication with the external air through the air inlet hole 126 at the bottom of the vaporization cavity 125.

In another optional embodiment, referring to FIG. 21 , FIG. 21 is a schematic structural diagram of a ninth embodiment of a vent channel in an electronic vaporization device according to this application. The air guide groove structure 151 further includes a third air guide groove 1513 and a fourth air guide groove 1514. One end of the third air guide groove 1513 is in communication with the first air guide hole 1521, and another end is in communication with the liquid flowing hole 111. One end of the fourth air guide groove 1514 is in communication with the second air guide hole 1522, and another end is in communication with the liquid flowing hole 111. The third air guide groove 1513 can transmit the air transmitted in the first air guide groove 1511 through the liquid flowing hole 111, and the fourth air guide groove 1514 can transmit the air transmitted in the second air guide groove 1512 through the liquid flowing hole 111, so that the first air guide hole 1521, the second air guide hole 1522, and the liquid flowing hole 111 perform air transmission at the same time, thereby shortening a duration for balancing the air pressure in the liquid storage tank 4 and the external air pressure.

In another optional embodiment, one end of the first air guide groove 1511 is in communication with the vaporization cavity 125 or the external air, and another end is in communication with the first air guide hole 1521. One end of the third air guide groove 1513 is in direct communication with the vaporization cavity 125 or the external air, and another end is in communication with the liquid flowing hole 111. One end of the second air guide groove 1512 is in communication with the vaporization cavity 125 or the external air, and another end is in communication with the second air guide hole 1522. One end of the fourth air guide groove 1514 is in direct communication with the vaporization cavity 125 or the external air, and another end is in communication with the liquid flowing hole 111.

The liquid in the liquid storage tank 4 flows to the vaporization core 2 through the liquid flowing hole 111. If the air pressure in the liquid storage tank 4 decreases, a speed at which the liquid in the liquid storage tank 4 flows to the vaporization core 2 through the liquid flowing hole 111 is less than a speed at which the vaporization core 2 vaporizes the liquid. Air is transmitted to the liquid storage tank 4 through the vent channel 15, to balance the air pressure in the liquid storage tank 4 and the external air pressure.

In a specific embodiment, a user inhales the electronic vaporization device 100. The vaporization core 2 vaporizes e-liquid, the air pressure in the vaporization cavity 125 is greater than the air pressure in the liquid storage tank 4, the vaporization cavity 125 is in communication with the external air, and the external air enters the vaporization cavity 125 through the air inlet hole 126. The air in the vaporization cavity 125 is pressed into the first air guide groove 1511 and the second air guide groove 1512 due to an air pressure difference, the air in the first air guide groove 1511 enters the liquid storage tank 4 through the first air guide hole 1521, the air in the second air guide groove 1512 enters the liquid storage tank 4 through the second air guide hole 1522, and the air is transmitted to the liquid storage tank 4 through the first air guide hole 1521 and the second air guide hole 1522. Therefore, the air pressure in the liquid storage tank 4 and the air pressure in the vaporization cavity 125 are balanced, and the e-liquid in the liquid storage tank 4 further enters the vaporization core 2 through the liquid flowing hole 111, so that the e-liquid in the liquid storage tank 4 can be smoothly transmitted to the vaporization core 2 through the liquid flowing hole 111, thereby avoiding dry burning of the vaporization core 2.

In a specific embodiment, a user inhales the electronic vaporization device 100. The vaporization core 2 vaporizes e-liquid, the external air pressure is greater than the air pressure in the liquid storage tank 4, and the external air is pressed into the first air guide groove 1511 and the second air guide groove 1512 due to an air pressure difference. The air in the first air guide groove 1511 enters the liquid storage tank 4 through the first air guide hole 1521, the air in the second air guide groove 1512 enters the liquid storage tank 4 through the second air guide hole 1522, and the air is transmitted to the liquid storage tank 4 through the first air guide hole 1521 and the second air guide hole 1522. Therefore, the air pressure in the liquid storage tank 4 and the external air pressure are balanced, and the e-liquid in the liquid storage tank 4 further enters the vaporization core 2 through the liquid flowing hole 111, so that the e-liquid in the liquid storage tank 4 can be smoothly transmitted to the vaporization core 2 through the liquid flowing hole 111, thereby avoiding dry burning of the vaporization core 2.

In a specific embodiment, a user inhales the electronic vaporization device 100. The vaporization core 2 vaporizes e-liquid, the air pressure in the vaporization cavity 125 is greater than the air pressure in the liquid storage tank 4, the vaporization cavity 125 is in communication with the external air, the external air enters the vaporization cavity 125 through the air inlet hole 126, the air in the vaporization cavity 125 is pressed into the first air guide groove 1511 and the second air guide groove 1512 due to an air pressure difference, and the air in the first air guide groove 1511 enters the liquid storage tank 4 through the first air guide hole 1521. When an amount of the air transmitted by the first air guide groove 1511 is greater than an amount of the air transmitted by the first air guide hole 1521, the third air guide groove 1513 transmits air that is not transmitted in the first air guide groove 1511 to the liquid storage tank 4 through the liquid flowing hole 111. When an amount of the air transmitted by the second air guide groove 1512 is greater than an amount of the air transmitted by the second air guide hole 1522, the fourth air guide groove 1514 transmits air that is not transmitted in the second air guide groove 1512 to the liquid storage tank 4 through the liquid flowing hole 111. Since the first air guide hole 1521, the second air guide hole 1522, and the liquid flowing hole 111 transmit air to the liquid storage tank 4, the air pressure in the liquid storage tank 4 and the air pressure in the vaporization cavity 125 are balanced, and the e-liquid in the liquid storage tank 4 further enters the vaporization core 2 through the liquid flowing hole 111, so that the e-liquid in the liquid storage tank 4 can be smoothly transmitted to the vaporization core 2 through the liquid flowing hole 111, thereby avoiding dry burning of the vaporization core 2.

The vaporizer 10 further includes a seal member 3, and the seal member 3 is provided between the mounting base 1 and the vaporization core 2. The seal member 3 may be a seal ring. The porous substrate 21 is made of any one of a porous ceramic or a porous metal.

The porous substrate 21 is in communication with the liquid stored in the liquid storage tank 4 and absorbs liquid from the liquid storage tank 4 through a capillary force; and the heating element 22 is configured to heat and vaporize the liquid of the porous substrate 21. In an embodiment, the porous substrate 21 includes an e-liquid transmission portion 211 and a protruding portion 212 integrally formed on one side of the e-liquid transmission portion 211, and the leaked liquid buffer structure 122 is in contact with a periphery of one side surface of the e-liquid transmission portion 211 provided with the protruding portion 212. A surface of the protruding portion 212 away from the e-liquid transmission portion 211 is a vaporization surface 214, a surface of the e-liquid transmission portion 211 in contact with e-liquid is a liquid absorbing surface 213, and the leaked liquid buffer structure 122 is in contact with an edge of the side surface of the e-liquid transmission portion 211 provided with the protruding portion 212. That is, the leaked liquid buffer structure 122 is provided in contact with an edge of the e-liquid transmission portion 211 and is provided at intervals with the protruding portion 212, so that the leaked liquid buffer structure 122 can be prevented from being damaged by a high temperature of the heating element 22 on the vaporization surface 214. The heating element 22 is provided on the vaporization surface 214. Specifically, the heating element 22 may be a heating film or may be a heating circuit. In a specific embodiment, the heating element 22 is electrically connected to an electrode, and one end of the electrode passes through a foundation base 121 to be connected to the power supply component 202. Specifically, the e-liquid transmission portion 211 and the protruding portion 212 are integrally formed, and the e-liquid transmission portion 211 and the protruding portion 212 are both made of porous materials. For example, the materials of the e-liquid transmission portion 211 and the protruding portion 212 may be a porous ceramic or a porous metal, but are not limited to the two materials, provided that the e-liquid in the liquid storage tank 4 can be transmitted to the heating element 22 through capillary action for vaporization. The e-liquid transmission portion 211 only covers a part of the leaked liquid buffer structure 122. The capillary force of the porous substrate 21 is greater than the capillary force of the leaked liquid buffer structure 122, and when the heating element 22 heats and vaporizes the liquid of the porous substrate 21, the liquid received by the leaked liquid buffer structure 122 may reflux to the porous substrate 21 and is heated and vaporized.

The mounting base 1 includes the vaporization cavity 125, the vaporization core 2 is accommodated in the vaporization cavity 125, and the leaked liquid buffer structure 122 is connected to the bottom of the vaporization cavity 125 and absorbs liquid deposited at the bottom of the vaporization cavity 125 through a capillary force. The mounting base 1 includes the upper base body 11 and the lower base body 12. The lower base body 12 includes the foundation base 121, the liquid flowing hole 111 is provided on the upper base body 11, the e-liquid in the liquid storage tank 4 flows to the porous substrate 21 through the liquid flowing hole 111. The leaked liquid buffer structure 122 is provided on the lower base body 12, the porous substrate 21 includes the liquid absorbing surface 213 and the vaporization surface 214, the liquid absorbing surface 213 is connected to the liquid flowing hole 111, the heating element 22 is provided on the vaporization surface 214, and the porous substrate 21 is in contact with the leaked liquid buffer structure 122.

When the air pressure in the liquid storage tank 4 increases, the air pressure in the liquid storage tank 4 is greater than the air pressure in the vaporization cavity 125, an air pressure difference between the liquid storage tank 4 and the vaporization cavity 125 presses the liquid in the liquid storage tank 4 to the porous substrate 21, so that redundant liquid overflows from the porous substrate 21, and the leaked liquid buffer structure 122 receives and locks the overflowed redundant liquid. When the air pressure in the liquid storage tank 4 decreases, the air pressure in the liquid storage tank 4 is less than the air pressure in the vaporization cavity 125, the air pressure difference between the liquid storage tank 4 and the vaporization cavity 125 enables the liquid in the leaked liquid buffer structure 122 to reflux to the porous substrate 21 in contact with the leaked liquid buffer structure through capillary action, and the porous substrate 21 refluxes the liquid to the liquid storage tank 4.

In this embodiment, the upper base body 11 and the lower base body 12 are integrally formed. Alternatively, a groove 112 may be provided on the upper base body 11, and a clamp member 124 is provided on an outer side wall of the lower base body 12 and is configured to be clamped to the groove 112 on the upper base body 11, so that the lower base body 12 is fixedly connected to the upper base body 11.

A material of the leaked liquid buffer structure 122 is a porous material, and the porous material may be a hard porous material or may be a soft porous material.

When the material of the leaked liquid buffer structure 122 is a hard porous material, to save space, the leaked liquid buffer structure 122 can be also configured to support the vaporization core 2. The hard porous material is at least one of a porous ceramic or a porous metal, or may be another material with a supporting capability and a liquid absorbing capability.

Referring to FIG. 22 , FIG. 22 is a schematic structural diagram of a first embodiment of a leaked liquid buffer structure according to this application. In a specific embodiment, the leaked liquid buffer structure 122 includes two leaked liquid buffer sub-members 1221 provided at intervals. A material of the leaked liquid buffer sub-member 1221 is a hard porous material, for example, may be a material such as a porous ceramic or a porous metal with a supporting capability and a liquid absorbing capability, so that the leaked liquid buffer sub-member can be used as a support member 127 supporting the vaporization core 2. It may be understood that, if the vaporization core 2 is fixed through another component, the leaked liquid buffer sub-member 1221 may not be configured to support the vaporization core 2. When the air pressure in the liquid storage tank 4 is greater than the air pressure in the vaporization cavity 125, the leaked liquid buffer sub-member 1221 can collect e-liquid leaked from the porous substrate 21. When the air pressure in the liquid storage tank 4 is less than the air pressure in the vaporization cavity 125, the e-liquid stored in the leaked liquid buffer sub-member 1221 can reflux to the porous substrate 21 in contact with the leaked liquid buffer sub-member, to further effectively utilize the leaked e-liquid, so that the leaked liquid buffer structure 122 can implement cyclic collection and reflux of e-liquid for a plurality of times. The liquid absorbing capability of the porous material forming the leaked liquid buffer structure 122 is less than the liquid absorbing capability of the porous material forming the e-liquid transmission portion 211. The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the leaked liquid buffer structure 122, and liquid collected in the condensed liquid collecting structure 14 refluxes to the porous substrate 21 in contact with the leaked liquid buffer structure through the leaked liquid buffer structure 122.

Referring to FIG. 23 , FIG. 23 is a schematic structural diagram of a second embodiment of a leaked liquid buffer structure according to this application. In another specific embodiment, the leaked liquid buffer structure 122 is U-shaped and the material thereof is a hard porous material. Specifically, the leaked liquid buffer structure 122 includes a leaked liquid buffer sub-member 1221 and a connecting portion 1222 connected to the leaked liquid buffer sub-member 1221 and away from an end portion of the porous substrate 21. Materials of the leaked liquid buffer sub-member 1221 and the connecting portion 1222 are porous materials, for example, may be materials such as a porous ceramic or a porous metal with a supporting capability and a liquid absorbing capability. A duct matching the air inlet hole 126 provided on the foundation base 121 is provided on the connecting portion 1222. The connecting portion 1222 is configured to absorb condensed e-liquid after vaporized e-liquid in the vaporization cavity 125 formed by the leaked liquid buffer structure 122 and the vaporization core 2 is condensed, to prevent the condensed e-liquid from leaking out through the air inlet hole 126. The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the leaked liquid buffer sub-member 1221 and/or the connecting portion, and the liquid collected in the condensed liquid collecting structure 14 refluxes to the porous substrate 21 in contact with the leaked liquid buffer structure through the leaked liquid buffer structure 122.

Referring to FIG. 24 , FIG. 24 is a schematic structural diagram of a third embodiment of a leaked liquid buffer structure according to this application. A body 123 is provided on the lower base body 12, the body 123 includes a first sub-body 1231 and a second sub-body 1232, and the first sub-body 1231 and the second sub-body 1232 are provided at intervals and symmetrically. The first sub-body 1231 and the second sub-body 1232 may be parallel to each other and perpendicularly provided on the foundation base 121. In another optional embodiment, the first sub-body 1231 and the second sub-body 1232 may be provided on the foundation base 121 obliquely and symmetrically. A distance between the first sub-body 1231 and one end of the second sub-body 1232 away from the foundation base 121 is greater than a distance between the first sub-body 1231 and one end of the second sub-body 1232 connected to the foundation base 121. Materials of the first sub-body 1231 and the second sub-body 1232 are dense ceramics, dense metals, or glass materials, or may be other materials with a supporting capability and without a liquid absorbing capability. In another specific embodiment, the leaked liquid buffer structure 122 is provided on end portions of the first sub-body 1231 and the second sub-body 1232 that are away from the foundation base 121, and the end portions of the first sub-body 1231 and the second sub-body 1232 that are away from the foundation base 121 are connected to the e-liquid transmission portion 211 through the leaked liquid buffer structure 122. The leaked liquid buffer structure 122 may be made of a porous material with a supporting capability and a liquid absorbing capability. For example, the material of the leaked liquid buffer structure 122 may be a material such as a porous ceramic or a porous metal with a supporting capability and a liquid absorbing capability. The leaked liquid buffer structure 122 can collect e-liquid leaked from the e-liquid transmission portion 211 in the leaked liquid buffer structure 122, and can further reflux the e-liquid stored in the leaked liquid buffer structure 122 to the e-liquid transmission portion 211 in contact with the leaked liquid buffer structure 122, to effectively utilize the stored e-liquid, thereby implement cyclic collection and reflux of e-liquid for a plurality of times. The material of the leaked liquid buffer structure 122 may be alternatively a material such as cotton, fiber, or liquid absorbing resin with a liquid absorbing capability and without a supporting capability. The liquid absorbing capability of the porous material forming the leaked liquid buffer structure 122 is less than the liquid absorbing capability of the porous material forming the e-liquid transmission portion 211.

The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the leaked liquid buffer structure 122, and the liquid collected in the condensed liquid collecting structure 14 refluxes to the porous substrate 21 in contact with the leaked liquid buffer structure through the leaked liquid buffer structure 122.

The material of the leaked liquid buffer structure 122 is a soft porous material, the leaked liquid buffer structure 122 is supported by the support portion 127, so that one end of the leaked liquid buffer structure 122 is in contact with the porous substrate 21, and another end extends to the bottom of the vaporization cavity 125. The soft porous material is at least one of cotton, fiber, or resin, or may be another material with a liquid absorbing capability and without a supporting capability.

Referring to FIG. 25 and FIG. 26 , FIG. 25 is a schematic structural diagram of a fourth embodiment of a leaked liquid buffer structure according to this application; and FIG. 26 is a top view of the leaked liquid buffer structure provided in FIG. 25 . In a specific embodiment, the material of the leaked liquid buffer structure 122 is a soft porous material. The leaked liquid buffer structure 122 is supported by the support portion 127, so that one end of the leaked liquid buffer structure 122 is in contact with the porous substrate 21, and another end extends to the bottom of the vaporization cavity 125. The support portion 127 includes a first support sub-member 1271 and a second support sub-member 1272. An airflow guide channel 1233 is provided on the first support sub-member 1271 and the second support sub-member 1272, the leaked liquid buffer structure 122 is provided in the airflow guide channel 1233, one end of the leaked liquid buffer structure 122 is in contact with the e-liquid transmission portion 211 in the porous substrate 21, and another end extends to the foundation base 121 of the lower base body 12. The airflow guide channel 1233 may be a groove structure, and a size of a groove of the airflow guide channel 1233 is greater than a size of a first capillary groove 1223. An opening 31 of one end of the airflow guide channel 1233 is provided on an inner side wall of each of the first support sub-member 1271 and the second support sub-member 1272, and an opening 31 of another end is located on an end surface of the first support sub-member 1271 and the second support sub-member 1272 away from the foundation base 121, and the leaked liquid buffer structure 122 filled in the airflow guide channel 1233 is in contact with the e-liquid transmission portion 211. A size of a cross section of a groove provided on surfaces of the first support sub-member 1271 and the second support sub-member 1272 away from the foundation base 121 is not less than a contact size between the e-liquid transmission portion 211 and the first support sub-member 1271 and the second support sub-member 1272. Specifically, a width of an opening 31 of the airflow guide channel 1233 on the end surfaces of the first support sub-member 1271 and the second support sub-member 1272 in a connecting line direction of the first support sub-member 1271 and the second support sub-member 1272 is not less than a contact width between the first support sub-member 1271 and the second support sub-member 1272 and the e-liquid transmission portion 211 in the connecting line direction of the first support sub-member 1271 and the second support sub-member 1272.

The leaked liquid buffer structure 122 is provided in the airflow guide channel 1233 and extends from an end portion of the airflow guide channel 1233. One end of the leaked liquid buffer structure 122 is connected to the e-liquid transmission portion 211, and another end extends between the first support sub-member 1271 and the second support sub-member 1272, or may extend to a surface of the foundation base 121, to collect condensed liquid of the vaporized e-liquid, thereby preventing the vaporized e-liquid from leaking out from the air inlet hole 126 provided on the foundation base 121 after being condensed and affecting the user experience. When the air pressure in the liquid storage tank 4 decreases, the leaked liquid buffer structure 122 may further reflux the collected e-liquid to the e-liquid transmission portion 211 in contact with the leaked liquid buffer structure through capillary action, to effectively utilize the leaked liquid, so that the leaked liquid buffer structure 122 can implement cyclic collection and reflux of e-liquid for a plurality of times. The liquid absorbing capability of the leaked liquid buffer structure 122 is less than the liquid absorbing capability of the e-liquid transmission portion 211. Specifically, the liquid absorbing capability of the porous material forming the leaked liquid buffer structure 122 is less than the liquid absorbing capability of the porous material forming the e-liquid transmission portion 211. The leaked liquid buffer structure 122 may be made of a liquid absorbing material such as cotton, fiber, or liquid absorbing resin. The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the leaked liquid buffer structure 122, and the liquid collected in the condensed liquid collecting structure 14 refluxes to the porous substrate 21 in contact with the leaked liquid buffer structure through the leaked liquid buffer structure 122.

When a temperature increases, a volume of each bubble in the e-liquid in the liquid storage tank 4 may expand to increase the air pressure in the liquid storage tank 4, and the e-liquid in the vaporization core 2 further leaks from the vaporization core 2 through the end portions of the e-liquid transmission portion 211. The e-liquid leaked from the e-liquid transmission portion 211 can flow to the leaked liquid buffer structure 122 connected to the e-liquid transmission portion 211, the leaked liquid buffer structure 122 is configured to collect the leaked e-liquid, and the e-liquid can penetrate in an extending direction of the leaked liquid buffer structure 122, to prevent the e-liquid from leaking out from the air inlet hole 126. When the temperature decreases, the vaporized e-liquid in the vaporization cavity 125 may form e-liquid through cooling and flows to the foundation base 121, and the e-liquid is collected through the leaked liquid buffer structure 122 extending to the surface of the foundation base 121. Meanwhile, the volume of each bubble in the e-liquid in the liquid storage tank 4 may shrink to decrease the air pressure in the liquid storage tank 4. Since there is an air pressure difference between the inside and the outside of the liquid storage tank 4, the e-liquid collected and stored in the leaked liquid buffer structure 122 flows, along the leaked liquid buffer structure 122, to the e-liquid transmission portion 211 connected to the leaked liquid buffer structure 122 in a direction approaching the e-liquid transmission portion 211 through capillary action, to effectively utilize the collected e-liquid.

Referring to FIG. 27 , FIG. 27 is a schematic structural diagram of a fifth embodiment of a leaked liquid buffer structure according to this application. In a specific embodiment, the leaked liquid buffer structure 122 includes a body 123 and a first capillary groove 1223 provided on the body 123. The first capillary groove 1223 may be provided on any side surface of the body 123, and an opening 31 may face toward any direction, provided that leaked liquid can be absorbed and stored. Preferably, the opening 31 of the first capillary groove 1223 faces toward the vaporization cavity 125. The body 123 is provided on a surface of the foundation base 121 close to the upper base body 11 and is fixedly connected to the foundation base 121, and the body 123 may be provided perpendicular to the surface of the foundation base 121 and integrally formed with the foundation base. One end of the body 123 away from the foundation base 121 is in contact with the e-liquid transmission portion 211, so that the first capillary groove 1223 extends on the body 123 in a direction away from the bottom of the vaporization cavity 125 or the foundation base 121 and is in contact with the e-liquid transmission portion 211, and another end of the body extends in a direction approaching the bottom of the vaporization cavity 125 or the foundation base 121. The first capillary groove 1223 is configured to store leaked liquid leaked from the e-liquid transmission portion 211 and reflux the leaked liquid to the liquid storage tank 4, to further prevent liquid leakage and effectively utilize the stored leaked liquid. The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the first capillary groove 1223, liquid leaked from the condensed liquid collecting structure 14 and the vent channel 15 is collected by the leaked liquid buffer structure 122, and the leaked liquid buffer structure 122 refluxes the leaked liquid to the porous substrate 21 in contact with the leaked liquid buffer structure.

A plurality of first capillary grooves 1223 are provided on a surface of a side wall of each of the first sub-body 1231 and the second sub-body 1232 close to the vaporization cavity 125, and the plurality of first capillary grooves 1223 provided side by side form the leaked liquid buffer structure 122. Specifically, A cross section of the first capillary groove 1223 may be in a shape of U, or may be in a shape of V, a semi-circle, a semi-ellipse, or n. The shape of the cross section is not limited herein, provided that the shape can facilitate liquid guiding and collection. In an optional embodiment, a size of the first capillary groove 1223 is not less than a contact size between the first capillary groove 1223 and the vaporization core 2. The size is a width in a direction of the first sub-body 1231 and the second sub-body 1232.

The bottom of the vaporization cavity 125 is a surface of the foundation base 121 connected to the leaked liquid buffer structure 122. A second capillary groove 1224 is provided on the surface of the foundation base 121 connected to the leaked liquid buffer structure 122. The second capillary groove 1224 is provided on the surface of the foundation base 121 between the first sub-body 1231 and the second sub-body 1232 and is in communication with the first capillary groove 1223. The first capillary groove 1223 and the second capillary groove 1224 form an L-shaped capillary groove. Specifically, a shape of a cross section of the second capillary groove 1224 is the same as the shape of the cross section of the first capillary groove 1223, and may be alternatively different from that of the first capillary groove. There may be one second capillary groove 1224, namely, one second capillary groove 1224 is in communication with all first capillary grooves 1223 on the first sub-body 1231 or the second sub-body 1232. A quantity of the second capillary grooves 1224 may be the same as a quantity of the first capillary grooves 1223, namely, one first capillary groove 1223 is in communication with one corresponding second capillary groove 1224. The first capillary groove 1223 can allow e-liquid leaked from end portions of the e-liquid transmission portion 211 to flow to the second capillary groove 1224 in an extending direction of the first capillary groove 1223, to store the leaked e-liquid and prevent the e-liquid from leaking out from the air inlet hole 126 provided on the foundation base 121. The second capillary groove 1224 may further collect condensed liquid after vaporized e-liquid is cooled, to prevent the vaporized e-liquid from leaking out from the air inlet hole 126 provided on the foundation base 121 after being condensed and affecting the user experience. The first capillary groove 1223 may further reflux the collected e-liquid to the e-liquid transmission portion 211 in contact with the first capillary groove through capillary action, to effectively utilize the collected leaked liquid. The liquid absorbing capabilities of the first capillary groove 1223 and the second capillary groove 1224 are less than the liquid absorbing capability of the e-liquid transmission portion 211. Specifically, the liquid absorbing capabilities of the first capillary groove 1223 and the second capillary groove 1224 are less than the liquid absorbing capability of the porous material forming the e-liquid transmission portion 211. The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the first capillary groove 1223 and/or the second capillary groove 1224, liquid leaked from the condensed liquid collecting structure 14 and the vent channel 15 is collected by the second capillary groove 1224, the second capillary groove 1224 refluxes the liquid to the first capillary groove 1223, and the first capillary groove then refluxes the liquid to the porous substrate 21 in contact with the first capillary groove 1223.

In another specific embodiment, the leaked liquid buffer structure 122 is further configured to support the vaporization core 2. Specifically, to save space, the first sub-body 1231 and the second sub-body 1232 provided with the first capillary groove 1223 are further configured to support the vaporization core 2. One end of each of the first sub-body 1231 and the second sub-body 1232 away from the foundation base 121 is configured to support the vaporization core 2. The e-liquid transmission portion 211 covers an end portion of each of the first sub-body 1231 and the second sub-body 1232 away from the foundation base 121, and the protruding portion 212 provided on one side of the e-liquid transmission portion 211 is provided between the first sub-body 1231 and the second sub-body 1232.

Referring to FIG. 28 , FIG. 28 is a schematic phenomenon diagram of a vaporizer in a heating process according to this application. With an increase in the temperature, a volume of each bubble in the e-liquid in the liquid storage tank 4 may expand to increase the air pressure in the liquid storage tank 4, and the e-liquid in the vaporization core 2 further leaks from the vaporization core 2 through the end portions of the e-liquid transmission portion 211. The e-liquid leaked from the end portions of the e-liquid transmission portion 211 can flow to the first capillary groove 1223 connected to the e-liquid transmission portion 211, the leaked e-liquid is collected by the first capillary groove 1223, the e-liquid can flow to the second capillary groove 1224 along the first capillary groove 1223 provided on the first sub-body 1231 and the second sub-body 1232, and the leaked e-liquid is collected by the first capillary groove 1223 and the second capillary groove 1224, to prevent the leaked e-liquid from leaking out from the air inlet hole 126. Referring to FIG. 29 , FIG. 29 is a schematic phenomenon diagram of a vaporizer in a cooling process according to this application. With a decrease in the temperature, the vaporized e-liquid in the vaporization cavity 125 formed by the first sub-body 1231, the second sub-body 1232, the foundation base 121, and the vaporization core 2 may be cooled to form e-liquid and then flows to the foundation base 121, and the e-liquid is collected by the second capillary groove 1224. Meanwhile, the volume of each bubble in the e-liquid in the liquid storage tank 4 may shrink to decrease the air pressure in the liquid storage tank 4. Since there is an air pressure difference between the inside and the outside of the liquid storage tank 4, the e-liquid collected and stored in the first capillary groove 1223 and the second capillary groove 1224 flows, along the first capillary groove 1223, to the e-liquid transmission portion 211 connected to the first capillary groove 1223 in a direction away from the second capillary groove 1224 through capillary action. The liquid absorbing capability of the e-liquid transmission portion 211 is greater than the liquid absorbing capabilities of the first capillary groove 1223 and the second capillary groove 1224, so that the e-liquid transmission portion 211 can absorb the e-liquid and effectively utilize the collected e-liquid.

Referring to FIG. 30 and FIG. 31 , FIG. 30 is a schematic structural diagram of a sixth embodiment of a leaked liquid buffer structure according to this application; and FIG. 31 is a schematic structural diagram of a second embodiment of a lower base body in an electronic vaporization device according to this application. The leaked liquid buffer structure 122 includes a body 123 and a capillary hole 1225 provided on the body 123. A plurality of capillary holes 1225 are provided on the first sub-body 1231 and the second sub-body 1232. One end of the capillary hole 1225 extends on the body in a direction away from the bottom of the vaporization cavity 125 and is in contact with the porous substrate 21, and another end of the capillary hole extends in a direction approaching the bottom of the vaporization cavity 125. Specifically, a cross section of the capillary hole 1225 may be in a shape of a rectangle, or may be in a shape of a triangle, a circle, a semi-circle, or a semi-ellipse. The shape of the cross section is not limited herein, provided that the shape can facilitate liquid guiding and collection. In an optional embodiment, a distribution width of the capillary hole 1225 on an end surface of each of the first sub-body 1231 and the second sub-body 1232 in contact with the porous substrate 21 is not less than a contact width between the first sub-body 1231 and the second sub-body 1232 and the porous substrate 21. The width is a width in a connecting line direction of the first sub-body 1231 and the second sub-body 1232. A second capillary groove 1224 is provided on a surface of the foundation base 121 connected to the body 123. The second capillary groove 1224 is provided on a surface of the foundation base 121 between the first sub-body 1231 and the second sub-body 1232 and is in communication with the capillary hole 1225. Specifically, a cross section of the second capillary groove 1224 may be in a shape of U, or may be in a shape of V, a semi-circle, a semi-ellipse, or n. The shape of the cross section is not limited herein, provided that the shape can facilitate collection. There may be one second capillary groove 1224, namely, one second capillary groove 1224 is in communication with all capillary holes 1225 on the first sub-body 1231 or the second sub-body 1232. A quantity of the second capillary grooves 1224 may be the same as a quantity of the capillary holes 1225, namely, one capillary hole 1225 is in communication with one corresponding second capillary groove 1224. The leaked e-liquid can flow to the second capillary groove 1224 along the capillary hole 1225, to store the leaked e-liquid and prevent the e-liquid from leaking out from the air inlet hole 126 provided on the foundation base 121. The second capillary groove 1224 may further collect condensed liquid after vaporized e-liquid is cooled, to prevent the vaporized e-liquid from leaking out from the air inlet hole 126 provided on the foundation base 121 after being condensed and affecting the user experience. The capillary hole 1225 may further reflux the collected e-liquid to the e-liquid transmission portion 211 in contact with the capillary hole through capillary action, to effectively utilize the collected leaked liquid and prolong a service life of the second capillary groove 1224. The liquid absorbing capabilities of the capillary hole 1225 and the second capillary groove 1224 are less than the liquid absorbing capability of the e-liquid transmission portion 211. Specifically, the liquid absorbing capabilities of the capillary hole 1225 and the second capillary groove 1224 are less than the liquid absorbing capability of the porous material forming the e-liquid transmission portion 211. The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the capillary hole 1225 and/or the second capillary groove 1224, liquid leaked from the condensed liquid collecting structure 14 and the vent channel 15 is collected by the second capillary groove 1224, the second capillary groove 1224 refluxes the liquid to the capillary hole 1225, and the capillary hole then refluxes the liquid to the porous substrate 21 in contact with the capillary hole 1225.

When a temperature increases, a volume of each bubble in the e-liquid in the liquid storage tank 4 may expand to increase the air pressure in the liquid storage tank 4, and the e-liquid in the vaporization core 2 further leaks from the vaporization core 2 through the end portions of the e-liquid transmission portion 211. The e-liquid leaked from the e-liquid transmission portion 211 can flow to the capillary hole 1225 connected to the e-liquid transmission portion 211, the leaked e-liquid is collected by the capillary hole 1225, the e-liquid can flow to the second capillary groove 1224 along the capillary hole 1225 provided on the first sub-body 1231 and the second sub-body 1232, and the leaked e-liquid is collected by the capillary hole 1225 and the second capillary groove 1224, to prevent the leaked e-liquid from leaking out from the air inlet hole 126. When the temperature decreases, the vaporized e-liquid in the vaporization cavity 125 may form e-liquid through cooling and flows to the foundation base 121, and the e-liquid is collected through the second capillary groove 1224. Meanwhile, the volume of each bubble in the e-liquid in the liquid storage tank 4 may shrink to decrease the air pressure in the liquid storage tank 4. Since there is an air pressure difference between the inside and the outside of the liquid storage tank 4, the e-liquid collected and stored in the capillary hole 1225 and the second capillary groove 1224 flows, along the capillary hole 1225, to the e-liquid transmission portion 211 connected to the capillary hole 1225 in a direction away from the second capillary groove 1224 through capillary action. The liquid absorbing capability of the e-liquid transmission portion 211 is greater than the liquid absorbing capabilities of the capillary hole 1225 and the second capillary groove 1224, so that the e-liquid transmission portion 211 can absorb the e-liquid and effectively utilize the collected e-liquid.

In another optional embodiment, the leaked liquid buffer structure 122 includes a first capillary groove 1223 and a soft porous material. The soft porous material is filled in the first capillary groove 1223, and the liquid absorbing capabilities of the first capillary groove 1223 and the soft porous material are less than the liquid absorbing capability of the porous substrate 21. The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the soft porous material and/or the first capillary groove 1223, liquid leaked from the condensed liquid collecting structure 14 and the vent channel 15 is collected by the first capillary groove 1223 and/or the soft porous material, and the liquid then refluxes to the porous substrate 21 in contact with the first capillary groove 1223 and/or the soft porous material.

In another optional embodiment, the leaked liquid buffer structure 122 includes a capillary hole 1225 and a soft porous material. The soft porous material is filled in the capillary hole 1225, and the liquid absorbing capabilities of the capillary hole 1225 and the soft porous material are less than the liquid absorbing capability of the porous substrate 21. The condensed liquid collecting structure 14 and the vent channel 15 are in communication with the soft porous material and/or the capillary hole 1225, liquid leaked from the condensed liquid collecting structure 14 and the vent channel 15 is collected by the capillary hole 1225 and/or the soft porous material, and the liquid then refluxes to the porous substrate 21 in contact with the capillary hole 1225 and/or the soft porous material.

Referring to FIG. 32 to FIG. 35 , FIG. 32 is a schematic structural diagram of a third embodiment of a lower base body in an electronic vaporization device according to this application; FIG. 33 is a schematic structural diagram of an embodiment of an end cap in an electronic vaporization device according to this application; FIG. 34 is a schematic structural diagram of another embodiment of an end cap in an electronic vaporization device according to this application; and FIG. 35 is a schematic diagram of an assembly structure of an end cap with a vaporizer and a power supply component in an electronic vaporization device according to this application. An end cap 30 is provided on one end of the vaporizer 10 configured to connect to the power supply component 202. The end cap 30 includes a bottom wall 301 and a cylindrical side wall 302 connected to the bottom wall 301, and a fixing portion connected to the vaporizer 10 is provided on the cylindrical side wall 302. In a specific embodiment, a fixing groove 303 connected to the vaporizer 10 and running through the cylindrical side wall 302 is provided on the cylindrical side wall 302, and the fixing groove 303 extends from an inner wall surface of the cylindrical side wall 302 to an outer wall surface of the cylindrical side wall 302. In another specific embodiment, the end cap 30 and a bottom of the vaporizer 10 are fixedly connected in an interference fit manner. A first air inlet hole 304 is provided on the bottom wall 301, and the first air inlet hole 304 runs through the bottom wall 301. A first connecting portion 405 is provided between the bottom wall 301 and the cylindrical side wall 302, a second air inlet hole 305 is provided on the first connecting portion 405, the second air inlet hole 305 communicates an inner cavity and the outside of the end cap 30, and the first air inlet hole 304 and the second air inlet hole 305 are provided independently.

In this embodiment, the bottom wall 301 includes two opposite long sides and two opposite short sides. Specifically, the bottom wall 301 may be in a shape of an ellipse or may be in a shape of a rectangle. In an optional embodiment, the two opposite long sides are parallel to each other, and the two opposite short sides are arc-shaped sides protruding outward.

In this embodiment, the first air inlet hole 304 is provided on the bottom wall 301, and the first air inlet hole 304 runs through the bottom wall 301. There may be two first air inlet holes 304, a connecting line of the two first air inlet holes 304 passes through a geometric center of the bottom wall 301, and may be further parallel to the two opposite long sides. A position where the first air inlet hole 304 is provided matches a position where an electrode connector 306 is provided, provided that end portions of the electrode connector 306 are exposed. The first air inlet hole 304 is configured to expose the electrode connector 306, and a size of the first air inlet hole 304 is greater than a size of the electrode connector 306, so that a gap between the electrode connector 306 and the first air inlet hole 304 forms an air inlet of an air passage of an air sensor. A shape of the first air inlet hole 304 may be a square or may be a rectangle or a circle. The shape of the first air inlet hole 304 may be the same as or different from an image of a cross section of the electrode connector 306. The shape and an area of the first air inlet hole 304 may be the same as or different from those of an end surface of the air passage of the air sensor, provided that air in the air passage of the air sensor enters the vaporizer 10, and the shape of the first air inlet hole 304 is not limited herein.

In this embodiment, the second air inlet hole 305 is provided on the first connecting portion 405 provided between the bottom wall 301 and the cylindrical side wall 302. The second air inlet hole 305 communicates the inner cavity and the outside of the end cap 30. The second air inlet hole 305 extends onto the bottom wall 301 and the cylindrical side wall 302, so that air in a gap between the shell 201 and the side wall of the vaporizer 10 may enter the vaporizer 10 through the second air inlet hole 305, and air in a gap between the end cap 30 and the power supply component 202 may also enter the vaporizer 10 through the second air inlet hole 305. When the shell 201 and the side wall of the vaporizer 10 are too tight, the air in the gap between the end cap 30 and the power supply component 202 may enter the vaporizer 10 through the second air inlet hole 305, to ensure an air inlet amount. When the end cap 30 and the power supply component 202 are too tight, the air in the gap between the shell 201 and the side wall of the vaporizer 10 may enter the vaporizer 10 through the second air inlet hole 305, to ensure an air inlet amount. In addition, when the vaporizer 10 is plugged, the air in the gap between the shell 201 and the side wall of the vaporizer 10 may complement to the gap between the end cap 30 and the power supply component 202 through the second air inlet hole 305, to further reduce a negative pressure generated between the end cap 30 and the power supply component 202, thereby prevent the negative pressure from affecting an air pressure in the air passage of the air sensor and reducing a possibility of mistaken triggering.

In this embodiment, the second air inlet hole 305 is provided on the two opposite long sides. Therefore, a travel distance that liquid is leaked from the bottom of the vaporization cavity 125 can be extended, and the liquid leaked from the bottom of the vaporization cavity 125 may not directly leak out. Compared with arranging the second air inlet hole 305 on the short sides provided opposite to each other, arranging the second air inlet hole 305 on the two opposite long sides can reduce an air inlet travel distance, so that air inlet can be quick and smooth and start is more agilely in an inhalation process. In a specific embodiment, there may be one or two or more second air inlet holes 305. In an exemplary embodiment, to ensure the air inlet amount in the vaporizer 10, there are two second air inlet holes 305. The two second air inlet holes 305 may be provided on one long side, and the two second air inlet holes 305 may be alternatively symmetrically provided on the two opposite long sides. A connecting line of the two second air inlet holes 305 passes through the geometric center of the bottom wall 301 and is perpendicular to the two opposite long sides. An area of the second air inlet hole 305 is from 1.0 square millimeters to 2.0 square millimeters. In an exemplary embodiment, the area of the second air inlet hole 305 is 1.5 square millimeters. A shape of the second air inlet hole 305 may be a square or may be a rectangle or a circle, provided that air on an outer side of the end cap 30 can enter the inner cavity through the second air inlet hole 305, and the shape of the second air inlet hole 305 is not limited. An air inlet source of the second air inlet hole 305 may be air entering from a charging port of the power supply component 202 or may be air entering from a through hole opened on the shell 201.

In an optional embodiment, a third air inlet is further provided on the bottom wall 301, a third air inlet is also provided on the cylindrical side wall 302, and the third air inlets on the bottom wall 301 and/or the cylindrical side wall 302 are in communication with the second air inlet hole 305.

An air inlet groove 307 is provided on a bottom surface of the lower base body 12 close to the end cap 30, the end cap 30 covers the air inlet groove 307 to form an air inlet channel 308, and the air inlet channel 308 is in communication with the air inlet hole 126 of the vaporization cavity 125. The first air inlet hole 304 and/or the second air inlet hole 305 provided on the end cap 30 are/is provided corresponding to an end portion of the air inlet channel 308 away from the air inlet hole 126 and in communication with the end portion.

In this embodiment, the first connecting portion 405 between the bottom wall 301 and the cylindrical side wall 302 is an arc surface structure, so that when the vaporizer 10 is inserted in the shell 201 and is in contact with a battery component, a gap is always formed between the end cap 30 and the power supply component 202, thereby ensuring smooth air inlet.

The vaporizer in the electronic vaporization device provided in this embodiment includes: a liquid storage tank, configured to store liquid; a mounting base, including a vent channel transmitting air to the liquid storage tank and a leaked liquid buffer structure having a capillary force, where the leaked liquid buffer structure is in communication with the vent channel; and a vaporization core, including a porous substrate and a heating element, where the porous substrate is in fluid communication with the liquid storage tank and absorbs liquid from the liquid storage tank through a capillary force; the heating element heats and vaporizes the liquid of the porous substrate; the vaporization core is located between the liquid storage tank and the leaked liquid buffer structure; and the leaked liquid buffer structure abuts against the porous substrate and is configured to reflux liquid leaked from the vent channel to the porous substrate. In the vaporizer provided in this application, the leaked liquid buffer structure can collect the liquid leaked from the vent channel, thereby preventing the leaked liquid from leaking out from an air inlet of the vaporizer. According to the provided leaked liquid buffer structure and the vaporization core, the leaked liquid stored in the leaked liquid buffer structure can reflux to the vaporization core through capillary action, to effectively utilize the leaked liquid, and liquid leakage of the vaporizer can be further prevented by repeating the foregoing process for a plurality of times, thereby improving the user experience.

The foregoing descriptions are merely embodiments of this application, and the patent scope of this application is not limited thereto. All equivalent structure or process changes made according to the content of this specification and accompanying drawings in this application or by directly or indirectly applying this application in other related technical fields shall fall within the protection scope of this application.

While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.

The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C. 

What is claimed is:
 1. A vaporizer, comprising: a liquid storage tank configured to store liquid; a mounting base comprising a vent channel configured to transmit air to the liquid storage tank and a leaked liquid buffer structure having a capillary force, the leaked liquid buffer structure being in communication with the vent channel; and a vaporization core comprising a porous substrate and a heating element, the porous substrate being in fluid communication with the liquid storage tank and configured to absorb liquid from the liquid storage tank through a capillary force, the heating element being configured to heat and vaporize the liquid of the porous substrate, wherein the vaporization core is located between the liquid storage tank and the leaked liquid buffer structure, and wherein the leaked liquid buffer structure abuts the porous substrate and is configured to reflux liquid leaked from the vent channel to the porous substrate.
 2. The vaporizer of claim 1, wherein, when an air pressure in the liquid storage tank increases, the liquid is pressed to overflow to the vent channel, and the leaked liquid buffer structure is configured to receive and lock the liquid leaked from the vent channel, and wherein, when the air pressure in the liquid storage tank decreases, the liquid refluxes to the liquid storage tank through the porous substrate.
 3. The vaporizer of claim 1, wherein the mounting base comprises an upper base body and a lower base body, the lower base body and the upper base body being fixedly connected to form a vaporization cavity, wherein the vaporization core is accommodated in the vaporization cavity, wherein the vent channel is provided on the upper base body, wherein the leaked liquid buffer structure is provided on the lower base body, and wherein the vent channel is connected to a bottom of the vaporization cavity through the leaked liquid buffer structure and is configured to absorb liquid deposited at the bottom of the vaporization cavity through a capillary force.
 4. The vaporizer of claim 3, wherein the vent channel is in communication with the vaporization cavity.
 5. The vaporizer of claim 4, wherein the vent channel comprises a capillary vent groove provided on an outer wall of the upper base body, one end of the capillary vent groove being connected to the liquid storage tank, one end of the capillary vent groove away from the liquid storage tank comprising an air inlet, the air inlet being provided on an end portion of the upper base body close to the lower base body, and the air inlet being in communication with the vaporization cavity.
 6. The vaporizer of claim 5, wherein a vent communication groove is provided on the lower base body, and wherein the vent communication groove is configured to communicate the vent channel with the vaporization cavity.
 7. The vaporizer of claim 6, wherein a first seal member is provided on one end of the upper base body away from the lower base body, wherein a one-way valve matching an end opening of the vent channel is provided on the first seal member, the one-way valve being configured to block the liquid in the liquid storage tank from leaking to the vent channel, and wherein, when the air pressure in the liquid storage tank decreases, air in the vent channel pushes the one-way valve to enter the liquid storage tank, and the liquid in the vent channel refluxes to the liquid storage tank through the vent channel.
 8. The vaporizer of claim 3, wherein the upper base body comprises a housing and a separating plate provided on the housing, the separating plate comprising an air guide hole structure, the air guide hole structure being in communication with the liquid storage tank, wherein a seal member is provided between one side of the separating plate away from the liquid storage tank and the vaporization core, and wherein the vent channel is provided between the upper base body and the seal member, the vent channel communicating the liquid storage tank with the vaporization cavity, one end of the vent channel being in communication with the air guide hole structure, and an other end of the vent channel being in communication with the vaporization cavity to transmit air to the liquid storage tank so as to balance air pressure in the liquid storage tank.
 9. The vaporizer of claim 8, wherein an air guide groove structure is provided on an inner wall of one side of the housing close to the seal member, and wherein the seal member covers the air guide groove structure to form the vent channel.
 10. The vaporizer of claim 8, wherein an air guide groove structure is provided on the seal member, and wherein the housing covers the air guide groove structure to form the vent channel.
 11. The vaporizer of claim 8, wherein the seal member is configured to prevent liquid leakage of the vent channel.
 12. The vaporizer of claim 3, wherein the leaked liquid buffer structure is provided on the lower base body, wherein the porous substrate comprises a liquid absorbing surface and a vaporization surface, the liquid absorbing surface being connected to a liquid flowing hole, wherein the heating element is provided on the vaporization surface, and wherein surfaces other than the liquid absorbing surface and the vaporization surface of the porous substrate are in contact with the leaked liquid buffer structure.
 13. The vaporizer of claim 12, wherein the leaked liquid buffer structure comprises a first capillary groove and a second capillary groove, the second capillary groove being provided at the bottom of the vaporization cavity, one end of the first capillary groove being in contact with the porous substrate, and an other end of the first capillary groove extending to the bottom of the vaporization cavity so as to be in communication with the second capillary groove.
 14. The vaporizer of claim 12, wherein the leaked liquid buffer structure comprises a capillary hole and a second capillary groove, the second capillary groove being provided at the bottom of the vaporization cavity, one end of the capillary hole being in contact with the porous substrate, and an other end of the capillary hole extending to the bottom of the vaporization cavity so as to be in communication with the second capillary groove.
 15. The vaporizer of claim 12, wherein the leaked liquid buffer structure comprises a porous material and is configured to support the porous substrate.
 16. The vaporizer of claim 1, wherein the capillary force of the leaked liquid buffer structure is greater than a capillary force of the vent channel, and wherein, when the heating element heats and vaporizes the liquid of the porous substrate, the leaked liquid buffer structure is configured to absorb leaked liquid in the vent channel.
 17. The vaporizer of claim 1, wherein the capillary force of the porous substrate is greater than the capillary force of the leaked liquid buffer structure, and wherein, when the heating element heats and vaporizes the liquid of the porous substrate, the liquid received by the leaked liquid buffer structure refluxes to the porous substrate and is heated and vaporized.
 18. The vaporizer of claim 1, wherein the porous substrate comprises an e-liquid transmission portion and a protruding portion integrally formed on one side of the e-liquid transmission portion, and wherein the leaked liquid buffer structure is provided on an edge of the e-liquid transmission portion and provided at intervals with the protruding portion.
 19. The vaporizer of claim 1, wherein the porous substrate comprises a porous ceramic or a porous metal.
 20. An electronic vaporization device, comprising: a power supply component; and the vaporizer of claim
 1. 21. An electronic vaporization device, comprising: a liquid storage tank configured to store liquid; a mounting base comprising a vent channel configured to transmit air to the liquid storage tank and a leaked liquid buffer structure having a capillary force, the leaked liquid buffer structure being in communication with the vent channel; a vaporization core comprising a porous substrate and a heating element, the porous substrate being in fluid communication with the liquid storage tank and configured to absorb liquid from the liquid storage tank through a capillary force, the heating element being configured to heat and vaporize the liquid of the porous substrate; and a power supply component configured to supply power to the vaporization core, wherein the vaporization core is located between the liquid storage tank and the leaked liquid buffer structure, and wherein the leaked liquid buffer structure abuts the porous substrate and is configured to reflux liquid leaked from the vent channel.
 22. The electronic vaporization device of claim 21, wherein, when an air pressure in the liquid storage tank increases, the liquid is pressed to overflow to the vent channel, and the leaked liquid buffer structure is configured to receive and lock redundant liquid, and wherein, when the air pressure in the liquid storage tank decreases, the redundant liquid refluxes to the liquid storage tank through the porous substrate.
 23. The electronic vaporization device of claim 21, wherein the mounting base comprises an upper base body and a lower base body, the lower base body and the upper base body being fixedly connected to form a vaporization cavity, the vaporization core being accommodated in the vaporization cavity, the vent channel being provided on the upper base body, the leaked liquid buffer structure being provided on the lower base body, and wherein the vent channel is connected to a bottom of the vaporization cavity and is configured to absorb liquid deposited at the bottom of the vaporization cavity through the capillary force of the leaked liquid buffer structure. 